Shenyang FC-31 / J-31 Fighter Demonstrator
- Thread starter RedSky
- Start date
Even if closed this post will hopefully bring this tread once open again back to its topic !
Deino
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J-31 - 26.6.13.jpg
Mikeybikey
New Member
Are my eyes playing tricks on me? The engines don't look like they are "aligned" or fixed, almost like it has 3D thrust vectoring.
I am pretty sure that is just distortion caused by hot air emitting from the nozzles.
broadsword
Brigadier
But the whole nozzle is being bent down, such that you can see the whole top surface. Can atmospheric heat distortion do that?
It could just be that one is fully open and one is constricted.
The right nozzle is probably not bent down, but simply narrowed. The distortion comes from the hot exhaust as the engine is put to high power. Seen this many times on J-20 video.
This picture is most probably taken when the right engine nozzle was narrowed first, the left nozzle will narrowed later. Not to be mistaken as TVC.
I guess the exciting part is that if this picture is recent, then J-31 test flight has started again. Hope to get new pictures of J-31 soon.
The right nozzle is probably not bent down, but simply narrowed. The distortion comes from the hot exhaust as the engine is put to high power. Seen this many times on J-20 video.
This picture is most probably taken when the right engine nozzle was narrowed first, the left nozzle will narrowed later. Not to be mistaken as TVC.
I guess the exciting part is that if this picture is recent, then J-31 test flight has started again. Hope to get new pictures of J-31 soon.
You're absolutely correct, the right engine is making thrust, the left engine is likely at ground idle thrust, turbine aircraft are often taxied on one engine to minimize fuel burn, in fact there is work going on to taxi with electric power to the mains, and to fire up once you reach the run-up pad to save fuel, another dumb green idea, but I guess if you are in line waiting for take-off that black rich mixture can be very noxious. This will likely cause more problems somewhere else, but hey, its a great idea...brat
