Ok... I've seen countless little red biplanes hang from their prop at airshows; certainly the prop is "stalled", and knowing that the engine/prop combination can produce thrust to counter the gross weight in order to allow the plane to hover is useful information to this small group of pilots. But how many of us really need that info?
If that prop is stalled the bird comes down!! Just because the plane has zero speed, does not mean the prop is stalled.
Ok, now you are splitting hairs.
J You know what I meant. In fact, you used the same term in the second line in the quoted message above to describe a prop that is in fact not stalled. But if you are going to split hairs, some part of every prop is stalled at almost every airspeed, except an Elippse, and that's only when the plane is going the designed speed at the designed RPM.
My intention was not to split hairs, unless you meant "stall" in a different way (...which I did not catch, ...:)) in the little red airplane context.
I meant stall in the DA-9, as the prop was effectively stalled and acceleration was sloooow. Hanging on the prop, no chance for a stall, just "helicopter mode" with a rather inefficient "short rotor" - don't think it would autorotate :) (Though that would be a serious show!!)
TJ
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