How do you determine when a prop will stall at Static (plane pulling out of a hover)? I thick that for practical purposes a 15 x 4 prop will not lose much efficiency at 12,000Rpm due to the prop stalling at static, while a 15 x 15 will lose static efficiency at 12,000 Rpm because much of the blade is stalled. My guess is that it has something to do with not only the pitch, but also the speed at which the air is moving over it. For instance, I would guess that the 15 x 15 would not stall at 50 rpms and the 15 x 4 would have stall at 50,000rpms. Please someone shed some light on this for me. Thanks
How do you determine how much thrust you losing at static?