[quote][b][url=/v3/forum/questions-g%C3%A9n%C3%A9rales-et-techniques-41/topic/questions-techniques-g%C3%A9n%C3%A9rales-404/?post=13943#post-13943]ex-rogcas[/url] a dit le 24/05/2007 à 15:33 :[/b]

Plus de précisions :
Il existe deux moteurs AL-31 à poussée vectorielle : l'AL-31FP (Su-30MKM/MKI) et l'AL-31FU (Su-37).

Les deux ont une poussée vectorielle sur l'axe vertical orientable de +/-15°.
Sinon :

[quote]To clarify the information above, the nozzles of Su-37 are capable of 19deg movement in two opposite directions. Originally, the nozzles were installed for vertical movement and both nozzles operated in the same plane. This is called 2D thrust vectoring. Providing the aircraft with 3D vectoring (when the nozzles can direct thrust in different planes) was the goal of the new AL-31FP engine configuration. First, the nozzles were rotated by 90deg to operate in the horizontal plane. But the tail sting (which houses the rearward-facing radar, brake parachute, flare and chaff dispensers, aft oblique RHAW antennas, spine integral fuel tank, tail radome) was obviously in the way of the nozzles and the jet stream (see photos to the left - the tail sting is considerably longer than the nozzles). So, the entire engine assemblies were rotated further 32deg in opposite directions (possibly towards each other) to give room to the nozzles. This resulted in two separate TV planes intersecting at 84deg (possibly below the aircraft). [b]This in fact is a differential 3D thrust-vectoring achieved with nozzles each capable of movement in 2D only.[/b] And, most importantly, the tail sting remained. Quite ingenious.[/quote]
[url=http://www.aeronautics.ru/sukhoi01.htm]Source[/url]

Donc c'est de la 2,5D !

 :wink:[/quote]