An aircraft includes an airframe having an extending tail and a counter rotating, coaxial main rotor assembly disposed at the airframe including an upper rotor assembly and a lower rotor assembly. A translational thrust system is positioned at the extending tail and provides translational thrust to the airframe. An airframe parasitic drag of the airframe is greater than a main rotor assembly drag of the main rotor assembly. An aircraft includes an airframe having an extending tail and a counter rotating, coaxial main rotor assembly disposed at the airframe including an upper rotor assembly and a lower rotor assembly. A translational thrust system is positioned at the extending tail and provides translational thrust to the airframe. A main rotor assembly drag is at or between about 25% and 40% of a total aircraft drag.
AIRCRAFT MAIN ROTOR DRAG TO AIRFRAME DRAG
19.10.2017
Patent
Elektronische Ressource
Englisch
IPC: | B64C AEROPLANES , Flugzeuge |
Computation of Engine-Airframe Installation Drag
Springer Verlag | 2005
|Induced Drag Effect on Airframe Noise
AIAA | 1976
|Computation of Engine-Airframe Installation Drag
British Library Conference Proceedings | 2005
|Induced drag effect on airframe noise
AIAA | 1975
|