Shenyang next gen combat aircraft thread

[iewgnem]

Please, Log in or Register to view URLs content!

The control law it uses is fascinating, almost like all moving wingtip surface is used for yaw rather than roll.

 

[Alfa_Particle]

The control law it uses is fascinating, almost like all moving wingtip surface is used for yaw rather than roll.

Why not both yaw and roll?

Deflect them differentially along with ailerons during level flight, and during turns, deflect one wingtip for more effective to yaw manipulation. It's circumstantial.

 

[e46m3]

I can think of lots of ways it can do yaw with so many control surfaces, I bet the flight computer will pick which is most appropriate and when and it's not just a set thing.

 

[latenlazy]

I suspect that the wingtips fluttering around so much indicates that there is quite a ways to go to smooth out the flight control laws for this design (no duh!) and that there won’t be as much fluttering in the final production version.

 

[mond]

I suspect that the wingtips fluttering around so much indicates that there is quite a ways to go to smooth out the flight control laws for this design (no duh!) and that there won’t be as much fluttering in the final production version.

Is it possible that the fluttering is by design? One way I was thinking to decouple yaw and roll with only the wingtips would be to flutter it so that the roll averages out. You'd still have drag causing the yaw, and you can correct for small roll deviations with the flaps.

 

[AndrewJ]

Please, Log in or Register to view URLs content!

Clipped from this video.

Please, Log in or Register to view URLs content!

 

[Squadson]

 

[Schwerter_]

I suspect that the wingtips fluttering around so much indicates that there is quite a ways to go to smooth out the flight control laws for this design (no duh!) and that there won’t be as much fluttering in the final production version.

That or it’s the pilot purposefully working the rudder pedals during a banked turn to see the responses (it’s also the first time we can confirm it has afterburners on, so maybe testing handling properties in a rather high G turn). The flutter looks just a tad too slow and rhythmic to make me think it’s purely an automated FCS response to sideslip.

 

[phrozenflame]

thats a really long nose. the cockpit shape is confusing, i have a hard time reconciling its apparent height in the above video with the low profile we've seen elsewhere.

I think the width of the nose might be creating that confusion. Damn wide nose.

 

[tanino]

I think the width of the nose might be creating that confusion. Damn wide nose.

Big nose for a huge number of T/R modules (perhaps new generation). The 6gen challenge is also one of optimization and efficiency in power use, in Kw.