Langley_wind_tunnel_on_Q.pdf


Jay Scheevel
 

Talked to a few people at Kevin’s spring fling about this, but a few pictures are better than a lot of talk. I superimposed some Langley Wind tunnel pics on top of the Q canard so you can see where the turbulent air mass caused by the stall ends up. Obviously over-rotation is not a good thing. This could happen in an accelerated maneuver or on the runway in a Tri-Q. If it happens on the runway (only possible in a Tri-Q), the CG rotates aftward very close to, or perhaps even behind, the main gear axis and there is no recovery except to apply brakes and get the nose back down. PDF attached for your consideration.

 

Cheers,

Jay

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