On Sep 1, 7:42 am, Jay Honeck wrote:

That's interesting -- I never realized that Bo pilots didn't need to
use flaps for departure.

I presume there is something about the wing that makes them
unnecessary?

Don't know about the Bonanza, but the Cessna 150 I learned in didn't
use them either unless the field was short, soft or rough -- and even
then the POH said not to use flaps if there was a significant obstacle
to clear. The reduction in distance-to-clear from a shorter takeoff
roll was more than compensated for by the poorer climb rate with even
10 deg of flap. For some airplanes the drag from any amount of flap
deployment really saps power.