An aircraft includes an airframe having an extending tail, a counter rotating, coaxial main rotor assembly disposed at the airframe including an upper rotor assembly and a lower rotor assembly, and a translational thrust system positioned at the extending tail and providing translational thrust to the airframe; The aircraft is configured to operate at an altitude of over 20,000 feet and at an airspeed of greater than 200 knots.
ROTORCRAFT OPERATIONAL ALTITUDE AND AIRSPEED
2017-08-10
Patent
Electronic Resource
English
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