"The velocity below which an aircraft will descend, or 'stall', regardless of its angle of attack."
Sorry about exceeding the word limit.
Uh, oh: I think I am off base with my reply, above (see below):
"In other words, stall speed is the engine RPM at which the torque converter transfers the power of the engine to the transmission. In the real world, the torque converter's stall speed roughly equates to the clutch engagement point on a manual transmission."
It still exceeds the word limit - sorry, again.
