The specs depend on the models ie exceed, fieldmaster etc
View page
It will probably be fine, but there is always a danger if you
exceed specs. If it were me, I would give it a try.
View page
The Specs was created in 1980.
View page
292 RPMs, the speed of a propeller is limited by the speed of
sound, rotor tip speed can't exceed it. The Apache rotors are
14.63m across. To see other specs. see link below.