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Chengdu J-20 empennage

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Is this the real max movement of the empennage ? This must make the aircaft extremely manoeuvrable...




I never saw this rudder output on a westen plane. Imagine how this plane reacts once airborne...


Source: http://www.ausairpower.net/APA-J-XX-Prototype.html

kind regards,



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Well it depends, I hardly believe this deflection is possible during flight as it would probably cause more drag than action. This pic is probably taken with engines off so you can't expect any hydro pressure or it's only possible for steering during taxi.


Even if it's possible, J-20 would lose a lot of speed and reduce her maneuverability...


Just my 2 cents!


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The engines are running in the picture. The airplane is turning around on the taxiway. My guess is that as the airspeed increases the flight control computer allows a smaller deflection angle.

EDIT: Are they used as airbrakes?

I only respond to that little mechanical voice that says "Terrain! Terrain! Pull Up! Pull Up!"


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