Liu Zhen
In mid July the PLA Airforce released a video of a nighttime preparation practise involving the stealth fighter every bit a demonstration of its combat readiness. The Chinese warplane was developed past times the Chengdu Aerospace corporation, which began testing them inwards 2011 earlier the commencement planes entered service inwards March 2017. So far a few dozen J-20s conduct hold been produced for the PLA although the manufacturer is continuing to construct more. The F-22 Raptor was developed past times Lockheed Martin for the exclusive purpose of the U.S. Air Force. Exports fifty-fifty to America’s closest allies are banned to protect its stealth technology.
Its initiatory flying was inwards September 1997 too it entered service inwards Dec 2005. In 2011 production was terminated because of the high costs involved too lack – at the fourth dimension – of whatever aircraft that could challenge its dominance.
America is planning to upgrade the fighter inwards time to come but for forthwith it remains, along alongside the Weilong, i of the around advanced 5th generation fighters inwards the world.
Both single-seat fighters conduct hold stealth capabilities, which way they are designed to avoid detection past times radar. Here is how the ii compare.
Design characteristics
The J-20 too F-22 are a similar size. The J-20 is 20.3 metres (66.6ft) long too has a 12.9 metre wingspan compared alongside the F-22’s 19m length too 13.6m wingspan.
Made of advance alloy materials, they likewise conduct hold similar empty weight of around 19,000kg.
The J-20’s loaded weight is slightly heavier, of around 32,000kg compared alongside the F-22’s 29,000kg, all the same the American fighter tin lavatory conduct wait alongside a maximum weight of 38,000kg, 2,000kg to a greater extent than than the J-20.
Performance
Both planes conduct hold a ceiling of 20km too a maximum speed of over Mach 2 (2,470km per hour) – faster than the speed of sound. The F-22 has a comparatively shorter arrive at – alongside a combat radius of 800km, spell the J-20’s large internal fuel tank tin lavatory sustain a longer combat radius of 1,100km.
Engine
The F-22 is powered past times afterburner turbofan F119-PW-100 engines, which enable it to super cruise at a speed of Mach 1.82. The engines conduct hold vectoring nozzles which enable it to perform agile manoeuvres effect at supersonic speeds.
However, the engine is the J-20’s weakest link. Plans for PRC to develop its ain advanced turbofan engines brutal behind schedule. This meant the manufacturers had to rely on inferior engines – either the Chinese WS-10B or Russian-made AL-31FM2/3 – which severely affects its manoeuvrability too stealth capacity at supersonic speeds.
However, the novel WS-15 engine, which is expected to move available adjacent year, volition become a long way to addressing this problem.
Stealth
The J-20’s frontal too side stealth capacities are believed to move excellent. But it is idea to move to a greater extent than vulnerable to radar from the parent compared alongside the F-22.
Armaments
To hold stealth, both fighters behavior their weapons inwards internal bays. The J-20 tin lavatory behavior upward to vi air-to-air missiles, fewer than the F-22. But thank you lot to larger infinite inwards each bay, the J-20 tin lavatory behavior longer arrive at missiles too the LS-6 precision-guided bomb.
So far it has non been confirmed to conduct hold whatever guns, although roughly analysts believe it would move able to behavior extended guns.
The F-22 tin lavatory agree upward to 8 curt or medium-range air-to-air or air-to-ground missiles. It likewise has an M61 Vulcan gun inwards improver to 4 under-wing driblet tank points, which allow it to behavior extra fuel or missile launchers.
Both aircraft receive highly integrated avionics too sensor equipment, featuring a low-observable, active electronically scanned array (AESA) that tin lavatory rail multiple targets inwards whatever weather.
It was reported past times Shenzhen TV that the J-20’s Type AESA radar arrangement is “totally similar” to the F-22’s AN/APG-77 system.
Cost
The F-22 production was axed because of its high toll – US$62 billion for the whole project, which equates to US$339 i one k thousand per aircraft.
The J-20’s question too evolution toll was estimated to move to a greater extent than than xxx billion yuan (US$4.4 billion), alongside a toll per aircraft of US$100-110 million.
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