Rumor has it that it's AL-31F M-1. Can Tphuang or Deino validate?
J-20 5th Gen Fighter Thread V
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Rumor has it that it's AL-31F M-1. Can Tphuang or Deino validate?
Huitong has listed it as al-31fn series 3, for the 201X prototypes (and is likely that case for LRIP as well)...
Do you have the specs for AL-31FN series 3?
SinoSoldier
Colonel
Thanks! It makes sense that the CAC will use J-10B engines as the interim since it'll cut down on maintenance.
b787
Captain
yes we do, Russia does report sales of engines and all the reported Al-31s that were delivered to China are in the 12.5 tonnes range, you are very wishywashy in this forum when it is convenient to you you say China dos not buy more Al-31s from Russia, all the reported Al-31s bought and delivered have been old models
b787
Captain
get your numbers, the Flanker, has no weapons bays weighs 16 tonnes, F-22 weighs 19 tonnes empty, it has a short fuselage, much shorter even if you believe J-20 length is 19.7 meters , the Al-31s reported to have been delivered by Russia are old Al-31s variants of 12.5 tonnes
Specially if you believe that China has not ordered any more Al-31s that you can find.
12.5 tonnes gives a 25 tonnes thrust, the J-20 like F-22 must weigh 30 tonnes at normal take off, no way my friend it will even compare with Eurofighter or Rafale, which are tiny and much lighter and can carry semi recessed weapon stations.
The only possibility is they are not using Al-31s and they use WS-10, but still the jet needs 15-16 tonnes like PAKFA or F-22 of thrust
Here a bit better:
Strange ... the latest model of the AL-31 is the FN series 3 with a documented thrust of 137 kN and in fact close to the 117S of the Su-35 (with 145 kN) !
... so much of our "wishywashy" and by the way the last ones were bought only in 2014.
(by the way, this is what I deem an official document ... and not from Rostec or Rian)
Deino
b787
Captain
30 tonnes versus 27 normal take off, do you get it the Al-31M3 has only 1000 kg extra thrust
Su-35 has a lower thrust engine than PAKFA, and T-50 features TVC nozzles that enhance drag, stealth, turn rate, roll rate and pitch rate.
A lot of cosmetics to improve the heavy weight it has and fix the compromises of stealth, the same is F-22.
Eurofighter or Rafale at normal take off have higher than 1 thrust to weight ratio and on mock combat with F-22 hold their ground, J-20 needs 15 to 16 tonnes engines at these stage even if it has FN3 the thrust is not higher than 1 at normal take off.
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