I mentioned wing shape and angle of attack. Reynolds number (airspeed) is a
minor factor, but if you're pulling 1G at stall speed, your RN is going to be
about the same as at any other instance of level flight stall, unless your wing
shape if off.
How sensitive is a modern turboprop to dirty wing surfaces?
I've heard of sailplanes that see noticeable performance degradation (drag
increase) with bug splatter on the leading edge, but I don't think it affects
stall behavior that much.
At any rate, there seems to be a general agreement that ice HAD changed wing
shape substantially from design parameters. (or maybe some of the flaps had
deployment problems?)
Mitch.
Rich Thomas wrote:
No, that's not how a wing stalls. Combination of wing shape, angle of
attack, airspeed, and occasionally some other factors.
--R [BSAAE, MSAAE (major aerodynamics)]
Mitch Haley wrote:
Allan Streib wrote:
So it's not implausible that they are flying along, nothing at all
seems to be out of the ordinary, and then they just fall right out of
the sky?
Unless the wings are iced up enough to change their shape, the main
factor in a stall is the angle of attack of the wing. Seems like
somebody might notice that the plane was excessively nose up before
lift was lost, but if they were at 1500' AGL, they might already have
been quite close to stall angle by intent.
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