Quote:
Originally Posted by flipper35
So does a fully articulated system reduce noise as well as having more blades on the tail rotor?
Does a semi-rigid rotor have any advantage in flying qualities over a fully articulated? I know the Red Bull team uses a type of rigid for the aerobatics, but that isn't a normal
|
Most of the noise generated by a conventional helicopter is generated by the main rotor/tail rotor aerodynamic interface. The first time I watched a "NOTAR" (no tail rotor) helicopter fly it was a revelation. Your can read about it, it all makes sense, but to see it in practical form flying was eye opening.
Rigid and semi-rigid rotor heads can increase air vehicle performance in terms of aircraft flight envelope. The Lynx I got to fly could do all of this:
The H-60 series has a fully articulated rotor head with elastomeric bearings and a bunch of other stuff. It is not as maneuverable as a semi-rigid system by has a lot of advantages.
There is so much more. There are probably no less than a 1000 books written on this stuff.
Rotor blades are another source of wonder.
