Those aspects are true of most aircraft to some degree, Ken, but particularly
of prop-driven aircraft with their propellors forward of the lifting surfaces.
And jet-propelled carrier aircraft like the F4 or the Buccaneer had “blown”
wings: the boundary layer was kept active by injecting air tapped from the
engines to increase lift for any given airspeed and to reduce the stall speed.
Chris
> On 11 Dec 15, at 15:09, Ken Norton <ken@xxxxxxxxxxx> wrote:
>
> The B-25 was unique in that it had two distinct stall speeds. One with
> the engines going and one without. When the engines were cranked up to
> maximum take-off power, they could get off the ground right around 70
> mph with all the prop-wash flowing over the wing. So, if the ship was
> was under full steam into the wind, you might have 35 mph coming down
> the flight deck. The airplane only needs to pick up another 35 mph to
> get off the ground.
>
> The problem was that if you had an engine failure before you got above
> engine-out stall speed, your flight was done. Normal stall speed was
> like another 40 mph faster.
--
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