I've used Master Airscrew props for a lot of years but since getting cut pretty bad on one, I've switched to Thunder Tiger Cyclones. It is a much safer prop as it needs no filing or sanding to remove flashings, and it has much duller leading and trailing edges. Haven't noticed any real performance differences and am wondering if anyone else has been concerned with how sharp the Master Airscrews are? Am also wondering if there is any performance data out there on 40 size props.
I've not seen any prop data wrt to max rpm, and thrust per rev or per 10,00rpm
Its generally thought thatr APC have the best efficiency / thrust ratio.
its generally thought that MAS is more flexible and a bit noisey
Its generally thought that RAM is underated
Iguess Bolly is also good although I have never tried one let alone seen one.
I use mostly JXF wood props and APCon the .46size engines and 12x6 on the .53-.55 engines. (OSAXrange)
Oh and I never flip a prop over with my fingers, not even for priming. I use an electric starter at all times.