Preliminary Design of a Tip-Jet-Driven Heavy Lift Helicopter Incorporating Circulation Control
HUGHES HELICOPTERS INC CULVER CITY CA
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This report describes a preliminary design study for a Very Heavy Lift Helicopter VHLH that is powered by jets at the blade tips and is controlled by circulation control applied to the main rotor blades. The main thrust of the program was to integrate a tip-jet-powered helicopter design computer program developed by Hughes Helicopters, Inc. HHI with circulation control data generated by the David Taylor Naval Ship Research and Development Center DTNSRDC. This work combined the computer program integration work with an air vehicle preliminary design study to size the helicopter and describe its features. The result of this study is the sizing of a four-engined helicopter with a 185-foot-diameter, two-bladed main rotor that is designed to carry the XM-1 Main Battle Tank 100 nautical miles in a ship-to-shore Marine Corps assault mission.
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