Item 1540
OTHER: Miscellaneous -
Thoughtless Ideas - Stopped Rotor
Drawing:
Notes:
For hover and slow speed flight the configuration is Side-by-side.
For cruise the forward velocity is increased. Then the rotors are stopped. Then the rotors are drawn in toward each other.
The two pairs of blades that are crossed during cruise adjust their vertical height slightly during the overlapping portion of their lateral movement. When fully overlapped (in the cruise position) the crossed root spars seat themselves into each other and lock together.
Obviously, the rotor blades must be extremely rigid.
During cruise the pitch action of the blades at 90º and 270º azimuths act as ailerons.
During cruise the pitch action of the blades at 30º, 150º, 210º and 330º azimuths may act as elevators; as an alternative to elevators in the horizontal stabilizer.
Propulsion:
Probably turbofan or turbojet, due to the theoretically high forward velocity that the rotor profile in cruise should allow.
Related Pages:
OTHER: Miscellaneous - Thoughtless Ideas - Adaptive Stagger Rotors (ASR)
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Initially displayed: December 9, 2006 ~ Posted to PPRuNe; December 9, 2006 ~ Last Revised: March 4, 2007
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