J20 Stealth Fighter

MiG-29SMT

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Weak excuses. Just admit you were wrong. You posted: "These aircraft all top up at Mach 1.7". Reffering to J20, FC31, JF17 and F35.

Now you're claiming a "design speed" of m1. 6 and a top speed of m2?

You specifically said J20 COULDN'T reach m2.

How can 4 different designs with different aerodynamic layouts, T/W ratios and max thrust have the exact same max speed just because they all use dsi's? And all 4 DSI intakes are unique in their DSI bump shape and bleeding layout.

Early in J20s prototyping phase we saw CAC iteratively change the J20s DSI intake layout, obviously to improve performance in drag, fuel consumption and max speed. But a certain armchair general/ "aeronautics design expert" here want us to believe that all Dsi's are the same.

DSIs are very attractive to many design houses building 5th gens because of their low weight, LO benefits, simplicity and effeciency in typical flight regimes.

Hasn't the AMCA moved to Dsis? Did you know there were indications that the YF23 team at Northrop were to transition to Dsis on a production black widow had they won the competition? YF23 is a high and fast air dominance platform. You think they'd do that if DSIs limited max speed at altitude to "Mach 1.6"?

Even Lockheed original dsi patent doesn't claim a "Mach 1.6 design speed limit". We all know DSIs are most effecient within a certain flight envelope. Most experts quote 1.6 to 2.0 Mach. You claimed J20 was a Mach 1.6 or 1.7 fighter to denigrate its prospects as an air superiority platform. Now youre twisting and turning to pretend you weren't wrong.

Just be humble and admit you were wrong.
The requirements for the inlet: – A high pressure recovery (1% loss in inlet pressure recovery results in 1.3% loss in thrust).

• DSIs also crucially improve the aircraft's low-observable characteristics (by eliminating radar reflections between the diverter and the aircraft's skin). • Additionally, the "bump" surface reduces the engine's exposure to radar, significantly reducing a strong source of radar reflection because they provide an additional shielding of engine fans against radar waves. • However, a diverterless intake reacts considerably to oblique flow, which is a disadvantage in maneuvering flight especially for two-engine aircraft.
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SexyChineseLady

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Turn up volume. Sounds of the WS-10C on the J-20!

The J-20 will be mass produced with this engine until the WS-15 comes online in the coming years.

 

MiG-29SMT

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Experts discuss demonstration flights of Chinese fifth-generation J-20 fighters at the Zhuhai Airshow. Recall that these aircraft are themselves Chinese developers refer to the new generation (4th - according to the Chinese classification), although not all foreign experts are ready to consider the J-20 as such.

1633517548023.png



Analyzing the flights of the J-20 at the air show, experts note that the fighter "clearly lacks dynamics." In flight, the plane “does not demonstrate lightness,” especially when performing aerobatics.

The aerobatics are selected in such a way that the problems with their implementation are not striking. And these flights were also carried out with a minimum payload.


In this regard, the opinion was expressed that it is extremely difficult to attribute the Chinese J-20 to super-maneuverable fighters today.

It should be noted that an updated modification of the fifth generation Chinese fighter, the J-20B, was presented at the Zhuhai air show. These aircraft are distinguished by an enlarged internal compartment for the placement of weapons, which at the same time affected the combat radius. Due to a decrease in the volume of fuel tanks, the combat range of the J-20 (J-20B) has decreased by about 7 percent.
1633517562136.png




In China, it is believed that this was the last air show at which the J-20B appeared without the upgraded Chinese WS-15 engines. The developers claim that by the end of this year all problems (and there are many of them) with these engines will be eliminated. In particular, it was stated that by the end of 2021 such a problem as the loss of thrust of the power plant when it reaches operating temperatures will be eliminated.

Experts note that the J-20B at the Zhuhai Airshow showed all its weaknesses, giving skeptics an additional reason to doubt whether it should be ranked among the fifth generation fighters at all. It is noted that if it were not for the stealth coating, then the J-20 is an aircraft that, at best, belongs to the 4+ generation without super-maneuverability capabilities.

 

MiG-29SMT

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Weak excuses. Just admit you were wrong. You posted: "These aircraft all top up at Mach 1.7". Reffering to J20, FC31, JF17 and F35.

Now you're claiming a "design speed" of m1. 6 and a top speed of m2?

You specifically said J20 COULDN'T reach m2.

How can 4 different designs with different aerodynamic layouts, T/W ratios and max thrust have the exact same max speed just because they all use dsi's? And all 4 DSI intakes are unique in their DSI bump shape and bleeding layout.

Early in J20s prototyping phase we saw CAC iteratively change the J20s DSI intake layout, obviously to improve performance in drag, fuel consumption and max speed. But a certain armchair general/ "aeronautics design expert" here want us to believe that all Dsi's are the same.

DSIs are very attractive to many design houses building 5th gens because of their low weight, LO benefits, simplicity and effeciency in typical flight regimes.

Hasn't the AMCA moved to Dsis? Did you know there were indications that the YF23 team at Northrop were to transition to Dsis on a production black widow had they won the competition? YF23 is a high and fast air dominance platform. You think they'd do that if DSIs limited max speed at altitude to "Mach 1.6"?

Even Lockheed original dsi patent doesn't claim a "Mach 1.6 design speed limit". We all know DSIs are most effecient within a certain flight envelope. Most experts quote 1.6 to 2.0 Mach. You claimed J20 was a Mach 1.6 or 1.7 fighter to denigrate its prospects as an air superiority platform. Now youre twisting and turning to pretend you weren't wrong.

Just be humble and admit you were wrong.
Su57 show


J-20 Show


J-20 flies lacking agility

:pound:a good laugh of show even Su-29 shows better agility

 

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