REFLECTOR:Determining AFT CG Limit
Scott
reflector@tvbf.org
Sun, 07 Dec 2003 08:58:58 -0700
I'm a different Scott but yes, in other words, that's what he means.
If you increase the angle of attack that the canard stalls at by placement
of VG's and do not increase the main wings stall angle by the same amount
you may be able to stall the main wing.
We all know that the Velocity is designed so the canard stalls before the
main wing, in normal flights modes(not hammer head stalls as somebody
reminded me).
However, its my belief that because this scenario was reached by using lift
enhancers(VG's) that only work when your flying, ie. below a certain
airspeed the VG's become ineffective, If your plane is correctly balanced,
once your forward airspeed drops below the point that the canard is flying
the plane will recover, thus your not entering a deep stall, but a kind of
conventional stall. This is conjecture and I've never tested it and
wouldn't with out a parachute and disposable airplane.
Scott
At 08:02 PM 12/6/2003, you wrote:'
>Scott, Are you saying that in the case of "too far aft", that, without
>corrective action, the canard will continue to rise and stall the main wing?
>
>John
>
>Scott Baker wrote:
>>VERY IMPORTANT NOTE> If, on the other hand, at the onset of the stall
>>you find the canard rising - and you are pushing on the stick to maintain
>>the constant climb attitude - you are in the dreaded "too far aft" cg
>>range ... immediately apply full forward elevator and full power, lean
>>forward, and take thyself back to the airport and (while adding 5 knots
>>to your normal approach speed) ... land and shift some weight forward ...
>>and then go do it again.
>>SB