Originally Posted by
admikar
That's still over 3 times more than Hill is proposing.
Not to mention that just the mixer unit and rotorhead makes it more complicated than the whole fixed wing aircraft is.
I'm not offering any opinion whether I support the application of amateur built status one way or the other, just trying to provide some background.
For example, CAA CAP 659 actually excludes rotor heads from the 51% rule. "This means that he would not be permitted to commission someone else to build his aircraft or even, subject to the provisions of the 51% rule, significant parts of it, with the exception of the engine(s), propellers, and helicopter or gyroplane transmissions, rotor heads or rotor blades."
That document (which is actually only guidance) does limit amateur built helicopters to 2 seats which might be more of a problem!