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Install eSignature Presentation Fast. Discover probably the most customer-helpful exposure to airSlate SignNow. Handle all of your record digesting and sharing method digitally. Move from hand-held, papers-centered and erroneous workflows to automated, computerized and faultless. It is simple to make, deliver and indicator any files on any product anywhere. Ensure that your important business circumstances don't slip overboard.
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FAQs
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What's a safe website for fast cash loans?
Times can be tough, but that doesn’t mean you should settle for just any short-term loan you can find. Payday loans and installment loans aren’t legal in every state, and even if they are legal, lenders usually have to abide by strict regulations. Any lender that isn’t willing to comply with state law won’t be legit.Finding a legit lender doesn’t have to be difficult. All you need is a good sense of your state laws and a baseline for finding a good deal.What is a legit short-term loan?A legit payday loan is one that is offered to you legally. The lender needs to abide by the regulations set by your state, even if you are temporarily visiting somewhere else. Short-term loans can be applied for online and in-store but fall under the same regulations.Generally, short-term lenders have more relaxed criteria than banks and other lenders. You’ll be able to apply for a short-term loan if you have bad credit, are on a lower income or receive government benefits. However, the relaxed eligibility criteria does mean rates and fees are higher than other loans.Lenders still have to stick to state-mandated APR and can only lend up to the state’s maximum amount.Lenders must make a reasonable judgment on an applicant’s ability to repay the loan. The lender should assess factors such as income, housing expenses and existing debt in determining if the applicant can reasonably repay the loan.If a lender doesn’t ask you for any of that information or doesn’t attempt to evaluate if you can afford the loan, the lender probably isn’t legit. Since there are plenty of lenders that check, you should move on and find one that combines good terms with a strong lending ethic.
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What is a payday loan, and why are they so bad?
This is a loan intended to be short term “payday” came about as it was intended to be a loan to carry you over till you got your next paycheck.As others have noted they are very high interest rate loans. Having such a loan for a short period of time (1–2 weeks) is expensive but not unmanageable. If you take such a loan off and take a long time to pay it off, then it will cost you a fortune in interest payments.The main issue is that when you get the loans they have 1–2 year terms on them, thus the payments may seem like they are not too bad monthly, but in reality you are paying a lot of interest and little on the principle so over that time you may pay double or triple the loan you took out (assuming you don’t just pay it off right away.The secondary issue is that these loans tend to be geared towards and given to lower income people with bad credit. Someone with good credit, even with low income, likely can have a credit card that could cover some unexpected expense, which is still high interest rate but no where near as bad as a payday loan… people with bad credit however will turn to payday loans, and there is a reason they have bad credit and this is normally related to their lack of ability to manage money. Take someone who is not good at managing money, give them a high interest loan and a long time to pay it off and it is very bad for the consumer.The final issue is that people also don’t use these loans for what they should be used for. This likely falls back to the poor money management part of things. People will take one of these loans out so they can buy a video game system or a new big TV, not to cover a necessity till the next paycheck. Basically this starts a spiral of debt on the heads of people who in general cannot afford it.
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Is it true that the United States military is the most powerful military in the world?
Very much true.The US military has massive power projection, more than any country in the history of man. The US has 11 (CATOBAR/STOBAR) Aircraft Carriers, while the next country has 1 which is, China, Russia, India, UK, and France. Also, the US Carriers are not just regular carriers, they are known as Super Carriers. Which is a term coined by the public to say that these carriers are so large that they exceed the definition of an Aircraft Carrier. Also, the US carriers were designed in the 70’s and countries are now just starting to make designs that could compete with the American Carriers. However, the US just redesigned the carrier and is coming out with the new Gerald R. Ford Class Carrier, which is supposed to be years possibly decades ahead of any other countries design. If you include Helicopter Carriers, and Amphibious Assault ships, that number jumps up to 20, soon to be 22. Then the next highest is tied between Japan and France with 4. My favorite part about the US having so many Aicraft Carriers is that if we divided them up between the major oceans, we could have 4 in each ocean… Crazy. The US carriers are also nuclear powered, they are the only carriers to be nuclear powered besides the French R91 Charles de Gaulle.Note the types of planes on the US Carriers. If you look at the USS Gerald R. Ford, it is fielding 5 different aircraft. 4 planes and 1 helicopter. We will look at the planes. Woden note, the USN has the 2nd largest Air Force in the world, right behind the USAF.First plane- McDonnell Douglas F/A-18 Hornet/Super Hornet: The plane is one of the most decorated planes, with thousands of successful missions, while requiring 3x less maintenance and failures than its counterparts. The plane has electronic warfare capabilities, air to air, and air to ground capabilities. Also, has spy and early warning capabilities. It was one of the first aircraft to heavily use multifunction displays, which at the switch of a button allow a pilot to perform either fighter or attack roles or both. The airframe is complex yet so simple, that a 4 man team can remove and install a new F404 engine in 40 minutes. Was also one of the very first 4th generation fighter on an aircraft carrier.Second plane- Northrop Grumman X-47B: This guy will be the very first and only Carrier based Drone. Northrop Grumman intends to develop the prototype X-47B into a battlefield-ready aircraft, the Unmanned Carrier-Launched Airborne Surveillance and Strike (UCLASS) system, which will enter service in the 2020s. So it’ll have strike options and surveillance capabilities.Third plane- Northrop Grumman E-2 Hawkeye: Many countries have AWAC systems or Airborne early warning and control. But only the United States have a Carrier based AWAC system. With the creation of this system, carriers that are hundreds of miles away from the nearest AWAC system, this plane gives the ability for a carrier strike group to potentially detect fifth-generation fighters like the Russian Sukhoi Su-57 and the Chinese Chengdu J-20 and Shenyang J-31 farther out. Also, gives the ability to guide fleet weapons, such as AIM-120 AMRAAM and SM-6 missiles, onto targets beyond a launch platform's detection range or capabilities.Fourth plane- Lockheed Martin F-35C Lightning II: This plane is the first and only carrier based 5th Generation Stealth fighter. The plane is meant as an air superiority fighter and a plane capable of ground support. It also has a very low, almost undetectable, cross section and radar signature. Besides radar stealth measures, the F-35 incorporates infrared signature and visual signature reduction measures. With the addition of a 5th generation stealth fighter, this gives the US military and Navy, the opportunity to do more damage and to have true air superiority over all other aircraft carrier based planes and land based planes. The US, in the event of a war, can now bring 5th gen fighters to the battle without the need of the Air Force against other 4th gen fighters, or possibly the few Chinese or Russian 5th gen fighters.Furthermore, the US have some of the best destroyers on the planet. With the highly acclaimed Arleigh-Burke Class Destroyer, and the brand new, low production Zumwalt Class Destroyer. The US has the most destroyers in the world with about double the next country, with another 4 undergoing sea trials and we are currently building 5 more and have awarded contracts for 5 more. By 2024 the US is expected to have 79 destroyers in service.Zumwalt Destroyer- The Zumwalt class warships are the largest destroyer ever built. The USS Zumwalt has unusual hull design optimized for wave piercing. There is a composite deckhouse. Angular shape minimizes its radar signature. The ship has hidden radar and sensors. The despite its size the USS Zumwalt has a radar signature of a fishing boat. Also it has reduced sound and infrared signature what makes this ship harder to detect. The ship is the First american surface warship to integrate electronic propulsion, it generates enough power to light up a small city. Sound levels of the Zumwalt are comparable with Los Angeles class submarines.Arleigh-Burke Destroyer- These guided missile destroyers entered service with the US Navy in 1991 were the first large US Navy vessel designed to incorporate stealth shaping techniques to reduce radar cross-section. Also these are one of the biggest destroyers in the world that incorporate highly advanced weaponry and systems. Hull profile of the Arleight Burke class signNowly improves seakeeping, permitting high speeds to be maintained in difficult sea states. The AN/SPY-1D phased array radar incorporates signNow advances in the detection capabilities of the AEGIS weapons system, particularly in its resistance to enemy electronic countermeasures. Missile are stored in vertical launch systems, that can also house smaller Evolved Sea Sparrow (ESSM) missiles, Tomahawk land attack cruise missiles, ASROC anti-submarine missiles. For point defense the ships are equipped with two Phalanx Close-In Weapon Systems (CIWS). Also there are 324 mm launchers for Mk.46 or Mk.50 torpedoes.Daily dose of freedom right here.Obviously, we can’t forget about the immaculate US submarine fleet. The US has some of the most advanced and quietest submarines. All of them use nuclear propulsion for extended range and stealth capabilities. The US has the…Ohio class (18 in commission) – 14 ballistic missile submarines (SSBNs), 4 guided missile submarines (SSGNs)- The U.S. Ohio-class submarines, of which 14 are Trident II SSBN, each capable of carrying 24 SLBMs. The first four which were all equipped with the older Trident I missiles have been converted to SSGN's each capable of carrying 154 Tomahawk guided missiles and have been further equipped to support Special OperationsSeawolf class (3 in commission) – attack submarines- The Seawolf class boats were intended to seek and destroy the latest Soviet ballistic missile submarines, such as the Typhoon class and attack submarines such as the Akula class. Seawolf class submarines are arguably the quietest submarines in the world ever constructed. It is exceptionally quiet even at high speeds. Most submarines need to keep their speed down to as little as 5 knots to avoid detection by passive sonar arrays, while the Seawolf class are credited with being able to cruise at 20 kots and still be impossible to locate. A Seawolf at 25 knots makes less noise than an older Los Angeles class submarine tied up alongside the pier. And these came out in 1989.Virginia class (11 in commission, 5 under construction, 2 on order) – fast attack submarines- The Virginia class submarines incorporate newly designed anechoic coating, isolated deck structures and new design of propulsor to achieve low acoustic signature. It is claimed that noise level of the Virginia is equal to that of the Seawolf class. The Virginia class submarines are fitted with 12 vertical launch system (VLS) tubes. These are used to launched Tomahawk land attack cruise missiles with a range of 1 700 km. Also there are four 533-mm torpedo tubes. These are used to fire a total of 26 Mk.48 heavyweight torpedoes and Sub-Harpoon anti-ship missiles. It is the first US submarine to employ a built-in Navy SEAL staging area allowing a team of 9 men to enter and leave the submarine.(Improved) Los Angeles class (34 in commission, 2 in reserve) – attack submarines- The Improved submarines are much quieter. It is described that improved Los Angeles class boats are 7 times quieter than the original Los Angeles class boats. The class features a very potent weapon array, including Mk.48 torpedoes, Sub-Harpoon anti-ship missiles and Tomahawk land attack cruise missiles. Tomahawk missiles can be launched from torpedo tubes of from dedicated vertical launching systems. These boats can operate under ice where the Russian ballistic missile submarines tend to hide.Surfacing of a US Submarine.Let’s move onto the air. While the USN has a quite capable Air Force. But that is dwarfed by the sheer magnitude and strength of the United States Air Force. The Air Force articulates its core missions as air and space superiority, global integrated ISR, rapid global mobility, global strike, and command and control. The USAF flys a multitude of different planes and helicopters. The USAF is the largest Air Force in the world, here is the list of what America flys. Most of these are at the cutting edge of innovation, with two of them being 5th generation stealth fighters. That’s really really good because no other country has an active 5th gen while the US has 2. The USAF also has the largest bomber, tanker, fighter, and transport fleets in the world. The USAF has so many staging areas around the world, that the US can have bombers or any other planes on station, anywhere around the world in a matter of hours.Attack: A-10, AC-130, MQ-1, MQ-9Bomber: B-1B, B-2, B-52HElectronic warfare: E-3, E-8, EC-130Fighter: F-15C, F-15E, F-16, F-22 (5th gen), F-35A (5th gen)Helicopter: HH-60, UH-1NReconnaissance: MC-12, RC-135, RQ-4, RQ-170, U-2, U-28Trainer: T-1, T-6, T-38, T-41, T-51, T-53, TG-16Transport: C-5, C-12, C-17, C-21, C-32, C-37, C-130, C-40, CV-22, VC-25Tanker: KC-10, KC-135Let’s look at the two of my favorite ones and the most technologically advanced planes in the world.F-22 RaptorThe F-22 Raptor air superiority fighter is almost invisible to radars. This aircraft carries a powerful array of weaponry. It is the most advanced and most expensive production fighter aircraft to date. Many of sensors and avionics of this plane remain classified. Engines of the raptor allow the aircraft to supercruise over long ranges, while thrust-vectoring nozzles, combined with a triplex fly-by-wire flight control system, make it exceptionally maneuverable. The highly integrated avionics systems also include a data-link, inertial navigation system with embedded GPS for high-accuracy navigation, and advanced electronic warfare, warning and countermeasures systems. Two central computers manage the automatic switching of the sensors between completely passive and wholly active operation, according to the tactical situation. Artificial intelligence algorithms fuse data from the sensors and present only relevant information to the pilot to reduce workload while at the same time improving tactical awareness. The datalink allows tactical information to be shared with other F-22s. The tech is so special that other countries, not even NATO allies are given the chance to procure the plane.B-2 SpiritThe B-2A Spirit is the silver bullet of US policy, reserved for use against targets of the highest priority. The B-2's stealth characteristics enable the undetected penetration of sophisticated anti-aircraft defenses and to attack even heavily defended targets. This stealth comes from a combination of reduced acoustic, infrared, visual and radar signatures (multi-spectral camouflage) to evade the various detection systems that could be used to detect and be used to direct attacks against an aircraft. Composites are extensively used to provide a radar-absorbent honeycomb structure; the bomber has a minimal IR signature, does not contrail and uses its shielded APQ-181 radar only momentarily to identify a target just before attacking. The onboard DMS is capable of automatically assessing the detection capabilities of identified threats and indicated targets. The DMS will be upgraded by 2021 to detect radar emissions from air defenses to allow changes to the auto-router's mission planning information while in-flight so it can receive new data quickly to plan a route that minimizes exposure to dangers. Also, most of the B-2s are stationed in Missouri, and they are capable of bombing any target in the world despite being in the heart of America.Now for the US ARMYThe US army it self is massive in numbers, coming in at 1.01 million personnel, it self is one of the biggest standing armies in the world, and that's just one branch of the US military. Also, in the US military, it is the largest branch out of them all surpassing any other branch by almost 600,000 personnel. They provide the bulk of security for the US's foreign interests. The mission of the U.S. Army is to fight and win our Nation's wars, by providing prompt, sustained, land dominance, across the full range of military operations and the spectrum of conflict, in support of combatant commanders. Which is mainly air domination and land domination. They mainly engage is conventional warfare, and asymmetrical warfare. The US Army's main responsibilities is preserving the peace and security and providing for the defense of the United States, the Commonwealths and possessions and any areas occupied by the United States, Supporting the national policies, Implementing the national objectives, Overcoming any nations responsible for aggressive acts that imperil the peace and security of the United States. The US Army is also home to some of the most dangerous, prestigious and hardest working special forces teams in the world such as the frontline special force, the Rangers, we also have the green berets and the iconic 1st Special Forces Operational Detachment-Delta (Airborne) also known as Delta Force. The US army is thought to be one of the most battle tested and battle proven militaries in the world. With the mobility of the USAF an army QRF can be anywhere on earth in less than 24 hours. The US ARMY uses the M1A2 Abrams tank. One of the most badass, heaviest, fastest, and battle hardened tanks in the world.This tank has incredible technology and armor. Also it has seen combat. It is one of the most feared MBTs. The M1A2 offers signNow protection against all well-known anti-tank weapons. This main battle tank uses advanced armor, reinforced with depleted uranium layers. The M1A2 has signNow level of protection against all known anti-tank weapons. It can also employ counter-IED equipment. The tank is armed with the same 120-mm M256 smoothbore gun as its predecessor. Range of effective fire is in excess of 4 km. This main battle tank is powered by a Honeywell AGT1500 gas turbine engine, developing 1 500 hp. The tank is one of the fastest in the world, clocking in (with no governor) at 60 mph while being THE heaviest tank in the world. As of April of 2018, the US has no combat losses with the Abrams, the Abrams has only been lost due to friendly fire, never to enemy fire.I don’t think I need to explain the marines. Just know that they use the same tech as the Army (with some exceptions) but they are also the main invasion force for the US. And they are badass.The US military signNow is massive with the Aircraft carriers and the 700+ military bases around the world. The US is truly the most powerful military in the world. The fact that they can have a men anywhere in the world in less than 24 hours and being able to bomb any place on earth, just proves how powerful the US military is.
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Do you need a loan to stop your troubles? Easy loan?
Try this site where you can find the best solutions for all your personal financial needs://creditandfinancesol.info/index.html?src=compare//RELATEDCar Insurance parked hit and run question?I have USAA as my auto insurance. Here’s the back story. I was parallel parked alongside a street here in Atlanta and a car (more than likely) was trying to get out of his/her space and hit the left driver side bumper pretty hard (ruining the paint and loosening up the bumper pretty good…and cracking the tail light). This person did not leave a note. I have my 500 deductible. I also have uninsured motorists coverage. Right now USAA is saying that I will have to pay the $500 ded. Why couldn’t they put it under the uninsured motorists coverage I have instead so I wouldn’t have to pay a dime? Is it within reason to call them and ask for this issue to be adjusted? If so, what points can I make to insure I get the deductible taken care of under the uninsured motorists coverage? Thank you for your help!”How much would insurance be on a Nissan 350z?Hi guys!! Ok so I’m soon to get a 2003–2006 Nissan 350z Touring or Enthusiast. Maybe around 9000$ to 15000. I’m almost 18 and what would insurance be like for me??? Allstate, State Farm, ect. I just need a basic monthly quote! Thanks!!”Flying insurance????????????do u need insurance if you are flying in a private jet charter (like a private jet)What are the best websites to get car insurance quotes from different companies in New York City?What are the best websites to get car insurance quotes from different companies in New York City?Geico Car Insurance?I have a 2013 Mitsubishi Lancer GT. My mother took the loan out and I was wondering can I get my own insurance (19 years old) and insurance the mitsubishi even though the loan is in her name?Co-op Health Insurance?Can anybody out there tell me how does Co-op Health insurance work. im researching for a paper in my finance class and cant find info elsewhereWhat is car insurance for a first time driver?Okay i am 18 and have never had my license before and am going to be getting it at the end of this month…soon we are going to start getting insurace quotes for my car, we have been talking about what would be the best way to go about getting the cheapest insurance…so would it be best to put the car in my name but then just be added to my parents insurance and have me as the primary driver OR would it make a difference if we put the car in one of my parents name and then had me listed as the secondary driver for the car ? OR maybe you know a better way to go about this please give me all the advice you know about this! thanks”Will taking a defensive driving class lower my insurance and take points off my driving record?Ive been in two car accidents one in Nov.2007 and the other Feb. 2008 and i was wondering if taking a defensive driving course would take points off my driving record and lower my insurance.Car insurance INCREASE every 6 months with no accidents/tickets? wtf!?Last year I had Unitrin Direct….they were charging me $85 a month…this is with NO tickets or accidents for the last 5 years of my driving record….this is also with the BASIC insurance that you need in Florida…10/10/20…NO collision…and a $1000 deductible….. So at the end of my 6 months…it was time for a renewal…they tried to bump me up to $140 a month for no reason…still no accidents/tickets…nothing had changed…i had expected my rate to DECREASE….they tell me it’s a STATEWIDE INCREASE ……so i called around… Ended up switching to Allstate who has been charging me $90 a month (better than $140 right?)…..6 months go by, everything’s cool…..now my policy renewal is coming up and they’re trying to tell me i need to pay $160 a month for their basic insurance. Are you kidding me? And according to them it’s another STATEWIDE INSURANCE INCREASE …… They also told me that it could be due to not having CONSECUTIVE insurance for the last few years, as in…I switched from State Farm to Unitrin to Allstate……they told me call the state insurance commissioner…which I did…. Got connected to some guy in Gainesville who tells me that the INSURANCE companies are the ones who decide the rates and increases…not them. Pretty much BS….Allstate’s blaming the state, state’s blaming them…feels like a huge runaround to me. Guess my questions are…. Should I stick with Allstate and pay $160 a month for this absolute BASIC insurance (keep in mind..no collision, $1000 deductible)…my car’s not even worth a YEAR of their insurance. …. Or shop around? But if I switch back to Unitrin or get Geico or whatever….will I risk having ANOTHER increase after 6 months? And is it true that one of the reasons for these statewide increases is not having consecutive insurance with the same company for so many years? Thanks all.”I’m on a fixed income with 3 cats. Does any cat owner know of a good affordable cat insurance plan?*I purr..fer to hear from people that already have a good affordable cat insurance plan.
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Can I borrow some money?
if you need money, there are ways you can get it safely and quicklyThere are times in life where you need money for a late bill or an emergency expense, but you might not know where to start on an often time-consuming and frustrating process. Our article below outlines the ways you can borrow money fast so you don’t have to spend time worrying about filling the gap between paychecks.Few month ago I need some urgent money, My friend Henry suggest me to take money from this website its reliable and you can get urgent money just after fill a form.So I did it.And get Money within 3 hours .This is the website URLOnline short term loans have less strict requirements than a traditional loan.One way to minimize interest rates how much a short term loan will cost is to only borrow the amount of money you need to cover your expenses and to choose the shortest repayment period you can afford.Here is the process3 Easy Steps1. Complete the Short Loan Request Form2. Our Network of Lenders Reviews Your Request – You Can Get a Loan Offer3. If Approved, Review and Accept Your Loan – All Conveniently OnlineRemember, our service is free and you’re not obligated to accept any loan offer.Eligibility:You do not need to have a perfect credit score to be eligible for a bad credit loan. Customers with poor credit may still qualify for a loan; however, our lenders do not typically provide loans over $1,000 to bad-credit individuals. Please note that meeting these requirements does not mean you will be connected to a lender.Requirements:Be at least 18 years old.Provide proof of citizenship, such as a Social Security number, or legal residency.Have a regular income, either from full-time employment, self-employment, or disability or Social Security benefits.Have a checking account in your name.Provide work and home telephone numbers.Provide a valid email address.Loan Process:Our loan request process is designed to connect you with the lender from our network who can assist with your financial needs. If successfully connected, our lender network will verify your information quickly and review your loan request.Depending upon the information you provide, a lender might respond with a loan offer. You should take your time in reviewing all details of any loan you’re considering. You will not be obligated to accept the offer if it is not the right offer for you!When you decide to accept your loan, just agree to the lender’s terms via e-signature. (Remember, you are under no obligation to accept any loan offered.)Once you add your electronic signature to the lender’s contract, they will distribute the loan funds to your checking account via direct deposit. All funds should be available as soon as the next business day, however, the exact availability timeframe will depend on your lender’s deposit process.Best and trusted online loanRepayment:The lender will present you with the repayment schedule and you will be able to repay your installment loan off over time rather than all at once.That’s all there is to it! Our lenders require no collateral, and you will not be denied a loan solely based on a poor credit history. Your steady income and checking account is the only security required.Note: Bad Credit Loans is not a lender; rather, They specialize in connecting borrowers with Their network of bad credit lenders and financial service providers. Bad Credit Loans cannot dictate your loan terms, conditions or interest rates/fees.
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How good is the Euro-Fighter Typhoon?
Modern warfare has become highly technological and strategic. Contemporary wars are won by Air forces - The modern fighter jets are complex fighting machines which form a ‘critical component’ of any world class airforce.Those Critical Assets are :LM JSF F - 35 Lightning IILM F - 22 RaptorEuro Fighter TyphoonSu - 35 Super Flanker ERafale Omni Role Super french FR3 / M variantsGripen SAAB Smart Figher JAS - 39 C / D / EChegdu Stealth J - 20 Mighty DragonStrike Eagle F - 15 EAdvanced Fulcrum MiG - 35sF / A - 18 Super HornetsF - 21 ViperFighting Falcon F - 16 Block - 52 & 60CAC J - 10s C Fire Bird Super Multi RoleSu - 30 Flanker variantsEagle F - 15 Variant CSu 27 s ‘Base Flanker’Fulcrum MiG - 29sare considered PRIME assets for thier air forces.They carry expensive tools of destruction with them such as :AIM 120 DMBDA MeteorRussian R - 77Storm ShadowVympel R - 73MICAR - 27Chinese Ultra long range PL - 15SD - 10JSMPavewayBrimstoneAIM 120 CAIM 132R - DarterDerbyPythonK - 100Astra &Cruise Missile & Stand Off A SMP VariantsHence one can safely say that No Manufacturer of Fighter jet will give away the Real / true Warfare or combat capability, let alone the full limits of it. Hence One has to wait for the real combat - the real showdown to see the real capability. Base Specifications & information related to Systems , Components , Weapons and Electronics are issued for marketing tactics or for disinformation purposes. So maybe all the information available is 100% accurate.__________________________________________________________________________________A generation of Airmen seems to have forgotten a simple lesson from history:‘It was leadership, not fancy equipment, that made the difference.’^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^THE EURO FIGHTER EF-2000 Tranche 4NICKNAMED “TYPHOON”Its a highly discussed Fighter jet , having mixed reviews by its supporters and by its opponents, has sparked a public argument. With predessors such as JAGUAR, PANAVIA & HARRIER, Its a European consorcium Fighter UK, Germany , Italy & Spain - first proto type released in Mid 1990s. Hence It was a European solution to a European scenario.DESIGN & AERODYNAMICSThe ability to patrol and intercept hostile aircraft is known as Quick Reaction Alert. Typhoon is a master in it.Designed for Single Seat - STOL Capable - Twin Engine - Initially developed as Supersonic BVR interception and close combat , Multi Role adaptations. Typhoon is designed to perform at least five air missions very efficiently :Air superiorityAir interdictionSuppression of Enemy Air Defence (SEAD)Close Air Support (CAS)Maritime Attack.Its in active operational service with 9 Operators.(Consorcium members plus Saudia Arabia, Qatar, Oman, Austria ). More than 550 Eurofighter Typhoon aircraft have been successfully delivered to seven countries: Germany, United Kingdom, Italy, Spain, Austria, Oman and Saudi Arabia; and ordered by two more: Kuwait and Qatar. Participated in combats during operations in Libya, Iraq and Syria.Length 15.96 m x Wingspan 10.95 m.Length 15.67 mtrs x Wingspan 10.67 mtrs for F- 35AHence slightly Big in Size then lets say F-35 Lightning IIMax Altitude Above 59,000 ftEuro Fighter is based on a Typical European Design of Unstable airframe , a foreplane Delta - wing forward canard configuration, with dual intakes under the fuselage & a single vertical stabilizer .The ‘conventional statically stable’ aircraft has a ‘built-in’ inherent stability which requires a large wing area and causes a lot of drag that slows the aircraft under a turn.Fighter jets require Agility which is exact opposite of Stability. You want a fighter to be able to make turns & loops as quickly & easily as possible. Consequently, fighter aircraft rely on configurations that are unstable or neutrally stable. Canards help in this regard.CANARDS AND THIER IMPACTAn aeronautical device wherein a small fore-wing is placed forward of the main wing of a fixed-wing aircraft. A wide variety of canard designs have been proposed and flown over . Canards are used on aircraft whose main wings are well behind the center of gravity, such as the Eurofighter Typhoon..Carnards can be used as horizontal stabilizers as they being ahead of the C.G of the aircraft, acts directly to reduce longitudinal static stability.The aerodynamic advantages derived from the delta wing canard configuration :AERODYNAMIC FLOW RESULTING IN HIGH ANGLE OF ATTACK :Angle of attack is the angle at which the oncoming air meets the wing. At low angle of attack, the vertical tail provides directional stability. However, as the angle of attack increases, its effectiveness decreases.High angles of attack (AOA) can be translated into a very high instantaneous turn rate and gives maneuverability advantages. Modren fighter jets can exceed 90 degrees AOA - Yet the software limit’s them from 30 - 60 Degrees to prevent Air frame damage owing to Stresses and fatigue factors.Layman terms - Higher the angle of attack, the more lift is generated by the wing… ONLY UPTO A POINT.Thereafter the wing signNow its ‘Critical Angle of Attack’ , and at higher angles of attack the amount of lift generated drops dramatically.Beyond the critical angle of attack , the wing no longer effectively generates lift and jet is stalled. Canards stall before the wings. Canards smoothen the turbulence and create Laminar (non-turbulent) flow. Good vortex flow is obtained and a High Angle of Attack may be obtained.UNSTABILITY :Create Unstability which is preferred. Results in Agility. The result is balanced by applying Controlled by FBW Computer Systems. A statically unstable basic aircraft needs continuous stabilisation with the help of an active flight control system with full authority.The high angle of attack recovery (HAoA) function is an extension of the flight control system’s angle of attack limitation. If the aircraft has a low speed and high nose angle, the angle of attack will be low at first but will increase and exceed the angle of attack limit as the speed drops further. The HAoA function and command will return the aircraft to the normal flight envelope in a controlled manner.CREATES LIFT :The canard essentially moves horizontal tail up to the nose and places the wing's center of lift behind the center of gravity. To balance the natural nose down tendency, Canard generates an upward lifting force - which helps oppose weight.Note that Canards results to produce ‘induced drag’ , it is usually countered by high aspect ratio canards i.e long and narrow.Combined delta canard configuration and 538 ft2 wing size confer very low wing loading on 50% internal fuel, and are optimised for transonic manoeuvre and supersonic dash performance. The loosely coupled canard is intended to provide high control authority at high angles of attack, by placing the surfaces ahead of the main vortices, but also to provide lower trim drag in supersonic flight.A Modern Composite Airframe with constituents :Carbon Fibre Composites 70%Metals 15%Glass Reinforced Plastics (GRP) 12%Only 15% of the aircraft’s surface is metal. This gives a small Radar Cross section of RCS < 0.5 m2. Hence Typhoon makes slightly greater use of RAM and active canard signature management for frontal RCS reduction (As a comparison this is probably offset in the high-end survivability department by Active Syealth of Gripen E or Rafale’s superior SPECTRA electronic warfare system).POWER PLANT & PROPULSION EXCELLENCEThe Euro Jet EJ - 200’s components were developed by Rolls-Royce plc, MTU, Avio Group SpA, and Industria Turbo Propulsores SA – all well-respected names. And, like the Eurofighter, The Euro-jet consortium hails from the United Kingdom, Germany, Italy, and Spain.The EJ-200 is the most modern combat engine in its class – with the best thrust-to-weight ratio, thrust retention and smallest fan diameter – the EJ200 sets new standards for reliability and adaptability. Typhoon is powered by 2 x Eurojet EJ-200 afterburning turbofans , each develops a DRY THRUST of 65 KN / 14,000 LBS & 90 KN / 20, 500 LBS Thrust with REHEAT.It takes about 1 minute 30 seconds after take-off to signNow more than 30,000 feet, all the while maintaining intercept airspeed.The engine is compact, approximately 4 metres in length, 800mm (30 inches) in diameter and weighs around 1,000 kg. The two-spool design with single-stage turbines drives the three-stage fan and five-stage HP compressor with annular combustion with vaporising burners.Engines powering the Typhoons of UK Royal Air Force (RAF) routinely achieve a mean time between repairs of over 1,000 flying hours, while the fleet leader in RAF has achieved over 1,700 flying hours on-wing without need for repair. This is unprecedented in combat engines where on-wing hours can often be measured in the low hundreds for previous generation engines. Relaibility centric Predictive Maintenance is achieved through use of advanced integrated Health Monitoring for class-leading reliability, maintainability and through Life Cost.Capability to cruise at supersonic speeds without the use of reheat (After Burners) for extended periods. it can fly at sustained speeds of MACH 1.5 AT FULL COMBAT EXTERNAL LOAD without the use of afterburner.CRITICAL SUB SYSTEMS OF PROPULSION SYSTEMLP CompressorHP CompressorA.C.CTurbine StageRe Heat or After burner SystemsDECMU1- LP - LOW PRESSURE COMPRESSOREJ-200 consists of a 3-stage Low-pressure compressor (LPC) module & 5-stage High-pressure compressor. This provides a ‘High Surge margin’ (Typhoon pilots feedback often states it is virtually impossible to surge the engine), needs no heating devices to combat ice and has a high bird strike resistance. Each stage of the LPC is equipped with wide-chord integrated blade/disk (blisk) assemblies that are low in weight (each stage in the LPC consists of a single blisk with no removable parts) and are a major factor in the reduction of complexity easing the burden on maintenance cost and personnel. At the end of the Low Pressure Compression module, core air is compressed by a factor of 4.2.2 -HP - HIGH PRESSURE COMPRESSORAir is then directed to the High Pressure Compressor (HPC), which is again designed achieve high reliability and minimum maintenance effort.Like the LPC, HPC is also equipped with single blisks in the first three stages. HPC further compresses core air by a factor of 6.2, leading to air that has been compressed by a factor of 26. The fact that EJ200 achieves this in eight stages, far lesser than the nine or ten stages employed by engines of comparable performance, is testament to the efficient aerodynamic design of the blades.3 - ACC - ANNULAR COMBUSTION CHAMBEREJ-200s annular combustor receives the highly compressed air. Microspraying fuel increases combustion-efficiency and also reduces the visible emissions of oxides of nitrogen. The key factors in determining jet engine efficiency and achievable work are the temperature and pressure differences attained between the engine inlet and combustor outlet. Although the maximum temperature of air leaving the combustion chamber is classified, the outlet stator temperature is generally reported to be 200ºC higher than previous generation engines.4 - TURBINE STAGEDownstream of the annular combustion chamber is the High Pressure Turbine (HPT). In order to handle the large temperatures generated in the combustion chamber, the HPT uses air-cooled single-crystal blades. The HPT guide vanes utilise a special Thermal Barrier Coating which increases the life of the blade and increases the achievable operating temperature .Following the HPT is a single Low Pressure Turbine stage, again employing single crystal blades.5- AFTER BURNING SYSTEMSEUROJET has installed an innovative three-stage thrust augmentation system to supply reheat as and when required by the pilot. Downstream from the low-pressure turbine, in the exhaust duct, are the first two stages of the thrust augmenter. The first stage consists of a radial series of burners and their associated flame cups. Subsequent to this is a stage of ‘primary vaporisers’ that spray fine mists of fuel that combust on contact with the hot exhaust air. Finally, the third stage comprises of fuel injectors located at the back of the bypass duct. These spray fuel into the cold, oxygen rich air that has passed through the duct unburned. It should be noted the dry performance of the engine is so good, pilots do not use reheat as much as other engines in this class. Operationally, this means more performance for less fuel.6 - DECMU (Digital Engine Control and Monitoring Unit)EJ-200’s Digital Engine Control and Monitoring Unit (DECMU) provides carefree handling for the whole turbo-machinery, automatically activates and controls the various stages of reheat, reduces pilot workload and provides engine monitoring and executive lifing functionalities. Executive Lifing measures actual usage rather than planned mission profiles which can achieve up to 50% Life Cycle Cost savings compared to other engines without this advantage. This is key not only to achieving the unparalleled standards of reliability but also in making the engine cost effective over its performance life. Executive Lifing reduces maintenance costs, especially given that the EJ-200 maintenance philosophy is a modular concept.Rate of Climb 317 Mtrs / SecWith 90KN ThrustSpeed 2.1 - 2.2 Mach & 2,900 kms RangeCombat RadiusGround attack, lo-lo-lo : 601 kmGround attack, hi-lo-hi : 1389 kmAir defence with 3hr CAP : 185 kmAir defence with 10-min loiter : 1389 kmG Limits : +9/-3 w/ int fuel and two AIM-120Impressive Thrust to Weight Ration of 1.15Empty Weight 22,000 lb / 9,999 kgMax Take-Off Weight 46,305 lb / 21,000 kgFerry Range 5,382 km / 3,310 miles — with 4 x drop tanksTyphoon is the faster aircraft and has a signNowly superior thrust-to-weight ratio which gives it better acceleration at all altitudes. This also allows Typhoon to retain and regain energy faster (than say Rafale) in a horizontal dogfight situation. Another key factor in maneuverability is Wing Loading ratio ; In aerodynamics, wing loading is the loaded weight of the aircraft divided by the area of the wing. It is expressed as kilograms per square meter, or pounds per square foot of wing area.Smaller the wing loading ratio , the better the turn performance.[math]Euro Fighter - 310 ; [/math][math]Rafale - 327 ; [/math][math]F15C - 358 ; [/math][math]F-18 - 460 Kg / m2. [/math]It also has a signNowly higher service ceiling of over 60,000 ft which allows it to operate uniquely well alongside the US F-22 Raptors ‘high and fast’ in the air superiority role which is exactly where it was designed to excel.RADAR , AVIONICS & COMMMUNICATIONSFull Authority FCS & Quadruplex digital system. Modern and comprehensive Avionic package. The pilot’s control system is a voice throttle and stick system (VTAS). Heads Up and Heads Down Display systems M.H.D.D installed.Detection technology used in latest tranch is :X-band CAPTOR (I/J-band) ECR-90 pulse-Doppler multimode radar.An AESA radar provides an aircraft with a more efficient, more robust, longer-ranged and finer-detailed radar than older, mechanically scanned or passive systems. It has improved Jamming Resistance and acts immensely to increase the situational awareness and effectiveness of a modren fighter jet. The addition of an AESA radar has become necessary because almost all modern fighter aircraft have already transitioned to this architecture.The CAPTOR-E radar , being developed by the Euro RADAR Consortium led by Selex ES, is based on the existing ‘back end’ of the mechanically-scanned (M-scan) CAPTOR radar. All Weather Radar Features Synthetic Aperture, Multimode A/A and A/G Fire Control Radar and Weapon System Support, with over 1,000 modules and a new AESA antenna mounted on an innovative repositioner. It can also cover low band Frequencies VHF/UHF. This gives the radar an unmatched field of regard without compromising performance and reliability.P.I.R.A.T.E SYSTEMA Passive Infra-Red Airborne Track Equipment (PIRATE) system for infrared search and tracking or a Supplementary Radar.The Typhoon’s PIRATE IRST is far and away the most capable fighter-mounted system in operation anywhere in the world. Its phenomenal sensitivity caused problems during the first decade of service due to the sheer number of false positive returns but now that processing power has caught up enough to allow the sensitivity to be properly exploited for extremely long range detection of fighter sized targets, including stealth targets, it is becoming one of Typhoon’s strongest advantages in the air superiority arena.However, at present, the systems integration allowing the radar and IRST to be tasked together in an optimal fashion is still superior on Rafale. This is a core focus of capability upgrades in the P3E software package for Typhoon.The system picks up heat changes around it & by this spot subsonic aircraft as far away as up to 100km+. This means that the Typhoon can still shoot its advanced IR-tracking missiles at a target, even though its enemy has stealth features.PIRATE detects and tracks the Infra-Red signatures of multiple aircraft at long range, over a wide field of view, day & night and adverse weather conditions. Being a passive sensor, it enables the aircraft to gather early intelligence of threats and to manoeuvre stealthily into an advantageous tactical position without being detected by hostile electronic warfare systems.PIRATE is integrated with other on-board sensor systems for maximum sensor fusion effectiveness. PIRATE locates & provides ‘cueing information’ on ground targets. It provides data and imagery to Head’s-up & Multi-function Head’s -down displays, facilitating navigation and terrain avoidance in adverse weather conditions.D.A.S.S SYSTEMDefensive Aid Sub System with Electronic Counter measures against incoming Missiles.Offering a comprehensive suite of electronic support measures and counter-measures, the Praetorian Defensive Aids Sub System developed by the Leonardo-led EuroDASS consortium, is carried in 2 x wing pods that are an integral part of the wing. DASS greatly enhances Eurofighter Typhoon’s ability to avoid, evade, counter and survive evolving threats.It consists of :Electronic Support Measures (ESM)A laser threat and missile approach warning systemAn Electronic Countermeasures System (ECM), decoys, towed decoysJammers and other sensorsAvionics.Eurofighter Typhoon D.A.S.S is also equipped with a ‘Towed Radar Decoy’ . carried in the starboad side as ‘built in’ to the wing tip. Towed decoy systems are for defensive purposes & used to protect fighter jets from radar-guided missiles. These countermeasures are towed behind the host aircraft protecting it against both surface-to-air and air-to-air missiles. They provide a radio-wave reflecting baid that attracts the RF-guided missiles away from the intended target.Miniature Air Launched Decoy MALDENHANCED SITUATIONAL AWARENESSEven while still on the ground, the pilot can keep a check on the position of the aircraft to be intercepted via its Data-Link (a two-way radio-controlled data exchange).The Miniature Air Launched Decoy (MALD) is used to lure enemy air defence systems into revealing themselves or attacking aircraft or ISTAR systems that can provide targeting information for stand off weapons. With a range of 500nm, endurance of 45 minutes, operating altitude of 40,000 feet plus, speed of Mach 0.91, modular electronics fit and emissions signature that is designed to mimic allied aircraft it can also be used to simply overwhelm air defences with targets, if they attack MALD they are depleting their finite missile stocks.The data-link is provided by the Multiple Image Data System (MIDS). It aids situational awareness information to the pilot. As a case in point - The french Super Omni Jet Rafale utilises ‘a one-way datalink’ with the missile when it has been fired, not the 2 - way ‘Datalink’. which Typhoon and Gripen E are equipped with – which allows for much more accurate and reliable guidance during very long range engagements whilst the missile is in semi-active mode.Kuwait’s Typhoons will be the first to use the Lockheed Martin Sniper Advanced Targeting Pod (ATP), which has recently been upgraded to include two-color laser spot tracking, short-wave infrared, and advanced non-traditional intelligence, surveillance, and reconnaissance (NTISR) modes.New-customer Typhoons Will Be the Most Advanced Yet***********************************************************************************In 2011, the RAF deployed 10 x Typhoon aircraft to its base in Italy for operations in Libya, and achieved 4,500 flying hours without an engine change. The aircraft operated in its air-to-air role and for the first time attacked ground targets using laser-guided Paveway bombs. “The sensors on the aircraft are so good it’s a question of how we use that information and how we get it to other fast jets and ground allies. It is about ensuring the right information is in the right place at the right time.” — Air Cdre Linc Taylor, Royal Air Force.A U.K. Royal Air Force Eurofighter Typhoon used a brimstone missile to destroy a boat used by Islamic State in Syria, the RAF said Friday, 2019 February 22 release, marking the first time the aircraft has deployed the weapon system. Brimstone is an air-launched ground-attack missile developed by MBDA for the RAF, specifically to target enemy armor. The Brimstone launcher carries three missiles in a single weapon station. Its equipped with enhanced autopilot, the Dual Mode SAL / millimetric wave (mmW) seeker, and the insensitive munition-compliant rocket motor and warhead.For Air to Ground missions you have the ability to simply look outside at where a target is then cue the weapon system to look there with the Litening Designator Pod. Due to this capability it means that after identifying a target, you can drop a Paveway IV, 500-lb precision weapon on it in seconds.**************************************************************************************WEAPONSMauser Cannon 27 mmIt has 13 hardpoints which allows for up to 3 fuel drop tanks and 10 missiles/laser guided bombs or 13 missiles/laser guided bombsLong Range 6 x BVR Matra- Meteor AMRAAMClose range SRAAM is 2 x AIM-132 ASRAAM.A range of air-to-ground weapons can be carried, including the new Storm Shadow CASOM, Brimstone anti-armour weapon, and the future Precision Guided Bomb (PGB).Manufacturers ban Euro Fighhter in exports for carrying nuclear weapons. RAF standoff weapon is the Matra-BAe Storm Shadow cruise missile.SCALP - STORM SHADOW Air-Launched, Long RANGE , Stand-Off Deep Attack MissileThe Storm Shadow missile is designed to penetrate deep into hard rock targets. It is equipped with fire-and-forget technology and fully autonomous guidance.The missile has a length of 5.1m, wingspan of 3m, and a body diameter of 0.48m. It weighs 1,300kg and has a range of more than 250km. The Storm Shadow missile is equipped with a Turbomeca Microturbo TRI 60-30 turbojet propulsion system, which can produce a 5.4kN of thrust.The missile is fitted with a two-stage bomb royal ordnance augmented charge (BROACH) blast/ penetrator warhead.The first stage of the warhead makes the way for the second stage by cutting the surface of the target. The larger second stage (main) of the warhead then penetrates into the target and detonates.The navigation system of the missile includes inertial navigation (INS), global positioning system (GPS) and terrain reference navigation for better control over the path and accurate target strike. The missile is fitted with a passive imaging infrared seeker. Once released from the aircraft, the missile follows a pre-programmed path at low level with the help of continuous updates from the onboard navigation system. It employs imaging infrared seeker to compare the actual target area with stored imagery repeatedly until signNowing the target.The Storm Shadow is also in service with the air forces of Italy, Greece, Saudi Arabia and the United Arab Emirates (UAE). It is referred to as Black Shaheen in the UAE Air Force service.The Storm Shadow can be integrated into Tornado GR4, Tornado IDS, Saab Gripen, Mirage 2000, Rafale, Eurofighter Typhoon and JSF F - 35 aircraft.CROWN JEWEL BVR - M E T E O R MBDA** Meteor : Beyond Visual Range BVRAAM Air to Air with Active Radar Guidance.Meteor offers a multi-shot capability against long range manoeuvring targets, jets, UAVs and cruise missiles in a Loaded Electronic Counter Measure environment , called ECM. It has range well in excess of 100 kilometres . Meteor can be launched as a stealth missile. It is equipped with enhanced kinematics features. It is capable of striking different types of targets simultaneously in almost any weather.Meteor’s stunning performance is achieved through its unique ramjet propulsion system – solid fuel, variable flow, ducted rocket. This ‘ramjet’ motor provides the missile with thrust all the way to target intercept, providing the largest No-Escape Zone of any air-to-air missile.No -escape zone of over 60 km is largest among air-to-air missiles according to manufacturer. Solid-fueled ramjet motor allows missile to cruise at a speed of over mach 4 and provides the missile with thrust and mid-way acceleration to target interception.The Typhoon is a super fighter within visual range , though we must always remember that at WVR , Its not fighting the aircraft but the pilot.*******************************************************************************COSTS AND REVIEW SUMMARYMaintenance cost of Typhoon is on higher side than that of Rafale.Unit Cost in excess of 125 MUS$ per aircraft.Euro Fighter Edges out all competitors such as Rafale in its Maneuverability, Higher THRUST Power , Increased Combat Radius, Excellent IRST , Advanced CM / Decoy system & higher Service Cieling . Yes Quality is Expensive. Its a potent partner for Euroean nations with JSF Lightning II F - 35.Where Typhoon acting as Air Superiority Leader and clearing Air enemy jets ; F - 35 Stealth acting as Battle manager - A Command & Control capable - Data fusion Electronic based - Striker bomber role for taking out SAM , S - 400s , AWACS etc and other remaining flying assets which may have avoided Euro Fighter Jet by flying away…!https://www.eurofighter.com/the-...***********************************************************************************Knowledge is a process of piling up facts; wisdom lies in their simplification.Thanks for reading..
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What are some nodeJS interview questions?
Check these questions which would be needful to you in your next interview:Q-1. What Is Node.Js?Answer.Node.js is a JavaScript runtime or platform which is built on Google Chrome’s JavaScript v8 engine. This runtime allows executing the JavaScript code on any machine outside a browser (this means that it is the server that executes the Javascript and not the browser).Node.js is single-threaded, that employs a concurrency model based on an event loop. It doesn’t block the execution instead registers a callback which allows the application to continue. It means Node.js can handle concurrent operations without creating multiple threads of execution so can scale pretty well.It uses JavaScript along with C/C++ for things like interacting with the filesystem, starting up HTTP or TCP servers and so on. Due to it’s extensively fast growing community and NPM, Node.js has become a very popular, open source and cross-platform app. It allows developing very fast and scalable network app that can run on Microsoft Windows, Linux, or OS X.Following are the areas where it’s perfect to use Node.js.I/O bound ApplicationsData Streaming ApplicationsData Intensive Real-time Applications (DIRT)JSON APIs based ApplicationsSingle Page ApplicationsAt the same time, it’s not suitable for heavy applications involving more of CPU usage.Q-2. What Are The Key Features Of Node.Js?Answer.Let’s look at some of the key features of Node.js.Asynchronous event driven IO helps concurrent request handling – All APIs of Node.js are asynchronous. This feature means that if a Node receives a request for some Input/Output operation, it will execute that operation in the background and continue with the processing of other requests. Thus it will not wait for the response from the previous requests.Fast in Code execution – Node.js uses the V8 JavaScript Runtime engine, the one which is used by Google Chrome. Node has a wrapper over the JavaScript engine which makes the runtime engine much faster and hence processing of requests within Node.js also become faster.Single Threaded but Highly Scalable – Node.js uses a single thread model for event looping. The response from these events may or may not signNow the server immediately. However, this does not block other operations. Thus making Node.js highly scalable. Traditional servers create limited threads to handle requests while Node.js creates a single thread that provides service to much larger numbers of such requests.Node.js library uses JavaScript – This is another important aspect of Node.js from the developer’s point of view. The majority of developers are already well-versed in JavaScript. Hence, development in Node.js becomes easier for a developer who knows JavaScript.There is an Active and vibrant community for the Node.js framework – The active community always keeps the framework updated with the latest trends in the web development.No Buffering – Node.js applications never buffer any data. They simply output the data in chunks.Q-3. Explain How Do We Decide, When To Use Node.Js And When Not To Use It?Answer.When Should We Use Node.Js?It’s ideal to use Node.js for developing streaming or event-based real-time applications that require less CPU usage such as.Chat applications.Game servers.Node.js is good for fast and high-performance servers, that face the need to handle thousands of user requests simultaneously.Good For A Collaborative Environment.It is suitable for environments where multiple people work together. For example, they post their documents, modify them by doing check-out and check-in of these documents.Node.js supports such situations by creating an event loop for every change made to the document. The “Event loop” feature of Node.js enables it to handle multiple events simultaneously without getting blocked.Advertisement Servers.Here again, we have servers that handle thousands of request for downloading advertisements from a central host. And Node.js is an ideal solution to handle such tasks.Streaming Servers.Another ideal scenario to use Node.js is for multimedia streaming servers where clients fire request’s towards the server to download different multimedia contents from it.To summarize, it’s good to use Node.js, when you need high levels of concurrency but less amount of dedicated CPU time.Last but not the least, since Node.js uses JavaScript internally, so it fits best for building client-side applications that also use JavaScript.When To Not Use Node.Js?However, we can use Node.js for a variety of applications. But it is a single threaded framework, so we should not use it for cases where the application requires long processing time. If the server is doing some calculation, it won’t be able to process any other requests. Hence, Node.js is best when processing needs less dedicated CPU time.Q-4. What IDEs Can You Use For Node.Js Development?Answer.Here is the list of most commonly used IDEs for developing node.js applications.Cloud9.It is a free, cloud-based IDE that supports, application development, using popular programming languages like Node.js, PHP, C++, Meteor and more. It provides a powerful online code editor that enables a developer to write, run and debug the app code.JetBrains WebStorm.WebStorm is a lightweight yet powerful JavaScript IDE, perfectly equipped for doing client-side and server-side development using Node.js. The IDE provides features like intelligent code completion, navigation, automated and safe refactorings. Additionally, we can use the debugger, VCS, terminal and other tools present in the IDE.JetBrains InteliJ IDEA.It is a robust IDE that supports web application development using mainstream technologies like Node.js, Angular.js, JavaScript, HTML5 and more. To enable the IDE that can do Node.js development we have to install a Node.js plugin. It provides features, including syntax highlighting, code assistance, code completion and more. We can even run and debug Node.js apps and see the results right in the IDE. It’s JavaScript debugger offers conditional breakpoints, expression evaluation, and other features.Komodo IDE.It is a cross-platform IDE that supports development in main programming languages, like Node.js, Ruby, PHP, JavaScript and more. It offers a variety of features, including syntax highlighting, keyboard shortcuts, collapsible Pane, workspace, auto indenting, code folding and code preview using built-in browser.Eclipse.It is a popular cloud-based IDE for web development using Java, PHP, C++ and more. You can easily avail the features of Eclipse IDE using the Node.js plug-in, which is
.Atom.It is an open source application built with the integration of HTML, JavaScript, CSS, and Node.js. It works on top of Electron framework to develop cross-platform apps using web technologies. Atom comes pre-installed with four UI and eight syntax themes in both dark and light colors. We can also install themes created by the Atom community or create our own if required.Q-5. Explain How Does Node.Js Work?Answer.A Node.js application creates a single thread on its invocation. Whenever Node.js receives a request, it first completes its processing before moving on to the next request.Node.js works asynchronously by using the event loop and callback functions, to handle multiple requests coming in parallel. An Event Loop is a functionality which handles and processes all your external events and just converts them to a callback function. It invokes all the event handlers at a proper time. Thus, lots of work is done on the back-end, while processing a single request, so that the new incoming request doesn’t have to wait if the processing is not complete.While processing a request, Node.js attaches a callback function to it and moves it to the back-end. Now, whenever its response is ready, an event is called which triggers the associated callback function to send this response.Let’s Take An Example Of A Grocery Delivery.Usually, the delivery boy goes to each and every house to deliver the packet. Node.js works in the same way and processes one request at a time. The problem arises when any one house is not open. The delivery boy can’t stop at one house and wait till it gets opened up. What he will do next, is to call the owner and ask him to call when the house is open. Meanwhile, he is going to other places for delivery. Node.js works in the same way. It doesn’t wait for the processing of the request to complete (house is open). Instead, it attaches a callback function (call from the owner of the house) to it. Whenever the processing of a request completes (the house is open), an event gets called, which triggers the associated callback function to send the response.To summarize, Node.js does not process the requests in parallel. Instead, all the back-end processes like, I/O operations, heavy computation tasks, that take a lot of time to execute, run in parallel with other requests.Q-6. Explain REPL In Node.Js?Answer.The REPL stands for “Read Eval Print Loop”. It is a simple program that accepts the commands, evaluates them, and finally prints the results. REPL provides an environment similar to that of Unix/Linux shell or a window console, in which we can enter the command and the system, in turn, responds with the output. REPL performs the following tasks.READIt Reads the input from the user, parses it into JavaScript data structure and then stores it in the memory.EVALIt Executes the data structure.PRINTIt Prints the result obtained after evaluating the command.LOOPIt Loops the above command until the user presses Ctrl+C two times.Q-7. Is Node.Js Entirely Based On A Single-Thread?Answer.Yes, it’s true that Node.js processes all requests on a single thread. But it’s just a part of the theory behind Node.js design. In fact, more than the single thread mechanism, it makes use of events and callbacks to handle a large no. of requests asynchronously.Moreover, Node.js has an optimized design which utilizes both JavaScript and C++ to guarantee maximum performance. JavaScript executes at the server-side by Google Chrome v8 engine. And the C++ lib UV library takes care of the non-sequential I/O via background workers.To explain it practically, let’s assume there are 100s of requests lined up in Node.js queue. As per design, the main thread of Node.js event loop will receive all of them and forwards to background workers for execution. Once the workers finish processing requests, the registered callbacks get notified on event loop thread to pass the result back to the user.Q-8. How To Get Post Data In Node.Js?Answer.Following is the code snippet to fetch Post Data using Node.js.app.use(express.bodyParser()); app.post('/', function(request, response){ console.log(request.body.user); }); Q-9. How To Make Post Request In Node.Js?Answer.Following code snippet can be used to make a Post Request in Node.js.var request = require('request'); request.post( 'http://www.example.com/action', { form: { key: 'value' } }, function (error, response, body) { if (!error && response.statusCode == 200) { console.log(body) } } ); Q-10. What Is Callback In Node.Js?Answer.We may call “callback” as an asynchronous equivalent for a function. Node.js makes heavy use of callbacks and triggers it at the completion of a given task. All the APIs of Node.js are written in such a way that they support callbacks.For example, suppose we have a function to read a file, as soon as it starts reading the file, Node.js return the control immediately to the execution environment so that the next instruction can be executed. Once file read operation is complete, it will call the callback function and pass the contents of the file as its arguments. Hence, there is no blocking or wait, due to File I/O. This functionality makes Node.js as highly scalable, using it processes a high number of requests without waiting for any function to return the expected result.Q-11. What Is Callback Hell?Answer.Initially, you may praise Callback after learning about it. Callback hell is heavily nested callbacks which make the code unreadable and difficult to maintain.Let’s see the following code example.downloadPhoto('http://coolcats.com/cat.gif', displayPhoto) function displayPhoto (error, photo) { if (error) console.error('Download error!', error) else console.log('Download finished', photo) } console.log('Download started') In this scenario, Node.js first declares the “displayPhoto” function. After that, it calls the “downloadPhoto” function and pass the “displayPhoto” function as its callback. Finally, the code prints ‘Download started’ on the console. The “displayPhoto” will be executed only after “downloadPhoto” completes the execution of all its tasks.Q-12. How To Avoid Callback Hell In Node.Js?Answer.Node.js internally uses a single-threaded event loop to process queued events. But this approach may lead to blocking the entire process if there is a task running longer than expected.Node.js addresses this problem by incorporating callbacks also known as higher-order functions. So whenever a long-running process finishes its execution, it triggers the callback associated. With this approach, it can allow the code execution to continue past the long-running task.However, the above solution looks extremely promising. But sometimes, it could lead to complex and unreadable code. More the no. of callbacks, longer the chain of returning callbacks would be. Just see the below example.With such an unprecedented complexity, it’s hard to debug the code and can cause you a whole lot of time. There are four solutions which can address the callback hell problem.1. Make Your Program Modular.It proposes to split the logic into smaller modules. And then join them together from the main module to achieve the desired result.2. Use Async Mechanism.It is a widely used Node.js module which provides a sequential flow of execution.The async module has API which passes data from one operation to other using the next callback.Another async API allows iterating over a list of items in parallel and calls back with another list of results.With the async approach, the caller’s callback gets called only once. The caller here is the main method using the async module.3. Use Promises Mechanism.Promises give an alternate way to write async code. They either return the result of execution or the error/exception. Implementing promises requires the use of <.then()> function which waits for the promise object to return. It takes two optional arguments, both functions. Depending on the state of the promise only one of them will get called. The first function call proceeds if the promise gets fulfilled. However, if the promise gets rejected, then the second function will get called.4. Use Generators.Generators are lightweight routines, they make a function wait and resume via the yield keyword. Generator functions uses a special syntax . They can also suspend and resume asynchronous operations using constructs such as promises or and turn a synchronous code into asynchronous.Q-13. Can You Create HTTP Server In Nodejs, Explain The Code Used For It?Answer.Yes, we can create HTTP Server in Node.js. We can use the command to do so.Following is the sample code.var http = require('http'); var requestListener = function (request, response) { response.writeHead(200, {'Content-Type': 'text/plain'}); response.end('Welcome Viewers\n'); } var server = http.createServer(requestListener); server.listen(8080); // The port where you want to start with. Q-14. What Is The Difference Between Nodejs, AJAX, And JQuery?Answer.The one common trait between Node.js, AJAX, and jQuery is that all of them are the advanced implementation of JavaScript. However, they serve completely different purposes.Node.Js –It is a server-side platform for developing client-server applications. For example, if we’ve to build an online employee management system, then we won’t do it using client-side JS. But the Node.js can certainly do it as it runs on a server similar to Apache, Django not in a browser.AJAX (Aka Asynchronous Javascript And XML) –It is a client-side scripting technique, primarily designed for rendering the contents of a page without refreshing it. There are a no. of large companies utilizing AJAX such as Facebook and Stack Overflow to display dynamic content.JQuery –It is a famous JavaScript module which complements AJAX, DOM traversal, looping and so on. This library provides many useful functions to help in JavaScript development. However, it’s not mandatory to use it but as it also manages cross-browser compatibility, so can help you produce highly maintainable web applications.Q-15. What Are Globals In Node.Js?Answer.There are three keywords in Node.js which constitute as Globals. These are Global, Process, and Buffer.Global.The Global keyword represents the global namespace object. It acts as a container for all other objects. If we type , it’ll print out all of them.An important point to note about the global objects is that not all of them are in the global scope, some of them fall in the module scope. So, it’s wise to declare them without using the var keyword or add them to Global object.Variables declared using the var keyword become local to the module whereas those declared without it get subscribed to the global object.Process.It is also one of the global objects but includes additional functionality to turn a synchronous function into an async callback. There is no boundation to access it from anywhere in the code. It is the instance of the EventEmitter class. And each node application object is an instance of the Process object.It primarily gives back the information about the application or the environment. – to get the execution path of the Node app. – to get the Node version currently running. – to get the server platform.Some of the other useful Process methods are as follows. – To know the memory used by Node application. – To attach a callback function that will get called during the next loop. It can cause a delay in executing a function.Buffer.The Buffer is a class in Node.js to handle binary data. It is similar to a list of integers but stores as a raw memory outside the V8 heap.We can convert JavaScript string objects into Buffers. But it requires mentioning the encoding type explicitly. – Specifies 7-bit ASCII data. – Represents multibyte encoded Unicode char set. – Indicates 2 or 4 bytes, little endian encoded Unicode chars. – Used for Base64 string encoding. – Encodes each byte as two hexadecimal chars.Here is the syntax to use the Buffer class.> var buffer = new Buffer(string, [encoding]); The above command will allocate a new buffer holding the string with as the default encoding. However, if you like to write a to an existing buffer object, then use the following line of code.> buffer.write(string) This class also offers other methods like and that allows read/write from various types of data to the buffer.Q-16. How To Load HTML In Node.Js?Answer.To load HTML in Node.js we have to change the “Content-type” in the HTML code from text/plain to text/html.Let’s see an example where we have created a static file in web server.fs.readFile(filename, "binary", function(err, file) { if(err) { response.writeHead(500, {"Content-Type": "text/plain"}); response.write(err + "\n"); response.end(); return; } response.writeHead(200); response.write(file, "binary"); response.end(); }); Now we will modify this code to load an HTML page instead of plain text.fs.readFile(filename, "binary", function(err, file) { if(err) { response.writeHead(500, {"Content-Type": "text/html"}); response.write(err + "\n"); response.end(); return; } response.writeHead(200, {"Content-Type": "text/html"}); response.write(file); response.end(); }); Q-17. What Is EventEmitter In Node.Js?Answer.Events module in Node.js allows us to create and handle custom events. The Event module contains “EventEmitter” class which can be used to raise and handle custom events. It is accessible via the following code.// Import events module var events = require('events'); // Create an eventEmitter object var eventEmitter = new events.EventEmitter(); When an EventEmitter instance encounters an error, it emits an “error” event. When a new listener gets added, it fires a “newListener” event and when a listener gets removed, it fires a “removeListener” event.EventEmitter provides multiple properties like “on” and “emit”. The “on” property is used to bind a function to the event and “emit” is used to fire an event.Q-18. How Many Types Of Streams Are Present In Node.Js?Answer.Stream in Node.js are objects that allow reading data from a source or writing data to a specific destination in a continuous fashion. In Node.js, there are four types of streams. – This is the Stream to be used for reading operation. – It facilitates the write operation. – This Stream can be used for both the read and write operations. – It is a form of a duplex Stream, which performs the computations based on the available input.All the Streams, discussed above are an instance of an “EventEmitter” class. The event thrown by the Stream varies with time. Some of the commonly used events are as follows. – This event gets fired when there is data available for reading. – The Stream fires this event when there is no more data to read. – This event gets fired when there is any error in reading or writing data. – It fires this event after it has flushed all the data to the underlying system.Q-19. List And Explain The Important REPL Commands?Answer.Following is the list of some of the most commonly used REPL commands.<.help> – It displays help for all the commands. – It displays the list of all the available commands. – Its use is to determine what command was executed in REPL previously.<.save filename> – Save the current REPL session to a file.<.load filename> – To Load the specified file in the current REPL session. – used to Terminate the current command. – To Exit from the REPL. – This command perfoms Exit from the REPL.<.break> – It leads Exitting from multiline expression.<.clear> – Exit from multiline expression.Q-20. What Is NPM In Node.Js?Answer.NPM stands for Node Package Manager. It provides following two main functionalities.It works as an Online repository for node.js packages/modules which are present at .It works as Command line utility to install packages, do version management and dependency management of Node.js packages.NPM comes bundled along with Node.js installable. We can verify its version using the following command-$ npm --version NPM helps to install any Node.js module using the following command.$ npm install For example, following is the command to install a famous Node.js web framework module called express-$ npm install express Q-21. What Is The Global Installation Of Dependencies?Answer.Globally installed packages/dependencies are stored in /npm directory. Such dependencies can be used in CLI (Command Line Interface) function of any node.js, but cannot be imported using require() in the Node application directly.To install a Node project globally use -g flag as.C:\Nodejs_WorkSpace>npm install express -g Q-22. What Is The Local Installation Of Dependencies?Answer.By default, NPM installs any dependency in the local mode. It means that the package gets installed in “node_modules” directory which is present in the same folder, where Node application is placed. Locally deployed packages are accessible via require(). Following is the syntax to install a Node project locally.C:\Nodejs_WorkSpace>npm install express Q-23. What Is Package.Json? Who Uses It?Answer.What Is ?It is a plain JSON (JavaScript Object Notation) text file which contains all metadata information about Node.js Project or application.This file should be present in the root directory of every Node.js Package or Module to describe its metadata in JSON format.The file is named as “package” because Node.js platform treats every feature as a separate component. Node.js calls these as Package or Module.Who Use It?NPM (Node Package Manager) uses file. It includes details of the Node.js application or package. This file contains a no. of different directives or elements. These directives guide NPM, about how to handle a module or package.Q-24. Does Node.Js Support Multi-Core Platforms? And Is It Capable Of Utilizing All The Cores?Answer.Yes, Node.js would run on a multi-core system without any issue. But it is by default a single-threaded application, so it can’t completely utilize the multi-core system.However, Node.js can facilitate deployment on multi-core systems where it does use the additional hardware. It packages with a Cluster module which is capable of starting multiple Node.js worker processes that will share the same port.Q-25. Which Is The First Argument Usually Passed To A Node.Js Callback Handler?Answer.Node.js core modules follow a standard signature for its callback handlers and usually the first argument is an optional error object. And if there is no error, then the argument defaults to null or undefined.Here is a sample signature for the Node.js callback handler.function callback(error, results) { // Check for errors before handling results. if ( error ) { // Handle error and return. } // No error, continue with callback handling. } Q-26. What Is Chaining Process In Node.Js?Answer.It’s an approach to connect the output of one stream to the input of another stream, thus creating a chain of multiple stream operations.Q-27. How To Create A Custom Directive In AngularJS?Answer.To create a custom directive, we have to first register it with the application object by calling the function. While invoking the method of , we need to give the name of the function implementing the logic for that directive.For example, in the below code, we have created a copyright directive which returns a copyright text.app.directive('myCopyRight', function () { return { template: '@CopyRight MyDomain.com ' }; }); Note – A custom directive should follow the camel case format as shown above.Q-28. What Is A Child_process Module In Node.Js?Answer.Node.js supports the creation of child processes to help in parallel processing along with the event-driven model.The Child processes always have three streams , child.stdout, and child.stderr. The stream of the parent process shares the streams of the child process.Node.js provides a module which supports following three methods to create a child process.exec – method runs a command in a shell/console and buffers the output.spawn – launches a new process with a given command.fork – is a special case of the spawn() method to create child processes.Q-29. What Are The Different Custom Directive Types In AngularJS?Answer.AngularJS supports a no. of different directives which also depend on the level we want to restrict them.So in all, there are four different kinds of custom directives.Element Directives (E)Attribute Directives (A)CSS Class Directives (C)Comment Directives (M)Q-30. What Is A Control Flow Function? What Are The Steps Does It Execute?Answer.It is a generic piece of code which runs in between several asynchronous function calls is known as control flow function.It executes the following steps.Control the order of execution.Collect data.Limit concurrency.Call the next step in the program. -
Which is better, Russian Sukhoi PAK FA T-50 or the US F-22 Raptor? Why?
There are a number of reasonable statements that can be made to compare these jets.Keeping things fairly simple, we can say:1) The F-22 should be stealthier, by a good margin from the front and by a very large margin from the sides. 2) The eventual production standard PAK FA should have some degree of a maneuverability advantage over the F-22, owing to assumed advantages in thrust/weight ratio and the fact that PAK FA thrust vectoring is planned to be 3 dimensional rather than 2. (This assumes that Russia succeeds in developing a next-generation engine, beyond the 117, and that western assumptions about the weight of the aircraft are correct. Initial production versions using the 117 engine will likely be more closely matched, kinematically, with the Raptor.)3) The Raptor should have a substantially better radar system, to some extent because of superior technology, but especially because of presumptive advantages in software development and computing power due to America's long history of superior defense electronics and generally world-leading tech sector. (These advantages are perishable, obviously, but it will likely be many years before they are overcome.)4) The Raptor will probably have an advantage in other information areas as well, such as radar warning, electronic warfare, and data fusion, mostly for the same reasons mentioned above. 5) The jets might turn out to be similar in their altitude and supercruise capabilities, but from today's perspective it seems likely that the PAK FA will probably trail the F-22 somewhat in this area, with a supercruise capability somewhat lower than the Mach 1.8 of the F-22. Certainly the burden of proof will fall on the PAK FA in this area, to show that it can rival the Raptor.6) The PAK FA will have an electro-optical sensor, whereas the F-22 does not. 7) F-22 networking will probably be better, once again thanks to the American tech sector.So where does all this leave the question of which is better? Well, it all depends on how you think future air combat will work....Factual comparisons of aircraft (or estimates) don't automatically yield results about which is better, but instead must be interpreted via general opinions about the kinds of tactics and technologies that might work best. If you are a believer in the by-now traditional 4th generation theories of energy maneuverability, you might think that the PAK FA will probably end up being somewhat better. If you're more in the camp of favoring stealth and information, you should conclude that the Raptor will be better. (All of this as regards air-to-air, which is all I've been concerned with in this post...)Of course, to have any REAL knowledge of anything, you'd have to understand the whole of the battlespaces these aircraft would be working in, of which the attributes of the fighters themselves might be of less relevance than you'd think. (Example: if an adversary can blow up all your airfields easily, the attributes of your jets are quite irrelevant!)
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Is the F-35 an uncompetitive fifth generation fighter plane?
QUESTION DUBBED F - 35 AS AN ‘UN COMPETATIVE 5.0 GEN JET’I will make an attempt to write an unbiased review of F - 35 , Which covers its Evolution, Exceptional advanced Systems - yet what’s written by critics.^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^A generation of Airmen seems to have forgotten a simple lesson from history:‘It was leadership, not fancy equipment, that made the difference.’__________________________________________________________________________INTROCUTIONCurrently 5.0 th generation jet fighters are the most Advanced fighter jets in the wo...
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