kungfugymnast
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I will tell you my final conclusion:
When you see an aircraft turning you must ask 2 questions?
Did it turn at its max turn rate?
To answer that you need to see the bank angle, a 82 deg turn rate is telling you 9Gs are applied no human pilot seated will endure for more than 9Gs for the entire turn, 86 deg the G forces are exponentially increased. (see chart of G load and Bank angle)
Second question what was the altitude?
The answer is:
The best turn of any aircraft is always at sea level (Zhuhai airport is at sea level and the J-20 flew very close to the crowd at very low altitude )
If you look at any aircraft manual the best turn will be at sea level, however some manuals give you 1 km like in the case of Russian aircraft manuals.
So the conclusion is J-20 was turning at sea level and very high bank angles, thus its near its max instantaneous turn rate but low thrust will reduce its sustained turn rate a lot.
My personal conclusion, and here I will leave it here and perhaps in 3 or 4 months or 1 year we can talk about it. it is.
WS-15 must be in the class of 16000-19000kg of thrust, because the J-20 must be as heavy as F-22, or even heavier because stealth demands too much internal volume and the materials and technologies of both aircraft are contemporary ( just a few years difference and China is playing catch up)
Zhuhai showed an unimpresive flight display, because the J-20 has not TVC nozzles, the engines are not WS-15 but an interim engine however the main highlight it was using WS-10s showing at least they can build it with domestic engines, once it has the WS-15 very likely will match or even surpass F-22.
The J-20 flying at Zhuhai was not fully loaded, it did not even have external stores,
Any way I will not extend any more and I really beg you to forgive my unpolite ways, I was rude ( and younger) but you are very nice by forgiving my rude ways.
Saludos
Good one, that's the spirit. Replying in forum is just like debating in court where the evil lawyer will always try to make you angry so that you'll lose control and say the wrong thing. Just stay rational and reply facts. Thanks for the info, guess DCS should really add this 86 degree blackout on human pilot endurance limit.
Most fighters can only maneuver best with minimal air to air missiles to get best turn radius. With WS-10C engines, the J-20A at best could out turn the F-15 but not nimble EF2000, Mirage 2000, Rafale, Su-35, Su-27. J-20A could still win limited dogfight if up against F-35 but not against F-22. Stealth vs stealth air combat will surely get into knife fight since radar & missiles could only track and hit stealth aircraft below 10-15nm or less, nobody knows unless they get to meet for real.
Conclusion, the J-20 is only perfect when it gets WS-15 with TVC if its goal is to counter F-22. Unless there's new navalized stealth fighter at 60ft that is more nimble but then the carrier based fighter might not be able to hit beyond mach 2 so the F-22 could still turn around and speed off fleeing from dogfight.