I was just discussing with a friend Kamov's unique way of
counteracting rotor torque in their helicopters - by employing
counter-rotating rotors rather than a tail rotor. We were
wondering how it was done.
How is yaw controlled at zero airspeed? I think it must be one of
two ways. Either one rotor is slowed so that normal torque
rotates the aircraft, or perhaps there's a system where the
blades on one side of one rotor are angled upwards and the blades
on the other rotor are angled downwards on the same side,
creating more drag on that side without extra lift. Does anyone
know how it's really done?
Also there's the question of power. There are two engines (piston
or turboshaft, depending on the model), presumably with the power
combined and then divided between the two rotors, rather than
each engine powering one rotor. In the event of a single engine
failure, I would assume that the remaining engine power is
therefore divided between the two rotors. How well can they fly
on a single engine?
Thanks for any input!
Check six
Buster
___ Blue Wave/QWK v2.20
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