Loading...
Please wait, while we are loading the content...
Similar Documents
Performance of advanced heavy-lift, high-speed rotorcraft configurations
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Acree Jr., C. W. Johnson, Wayne Yeo, Hyeonsoo |
| Copyright Year | 2007 |
| Description | The aerodynamic performance of rotorcraft designed for heavy-lift and high-speed cruise is examined. Configurations considered include the tiltrotor, the compound helicopter, and the lift-offset rotor. Design conditions are hover and 250-350 knot cruise, at 5k/ISA+20oC (civil) or 4k/95oF (military); with cruise conditions at 4000 or 30,000 ft. The performance was calculated using the comprehensive analysis CAMRAD II, emphasizing rotor optimization and performance, including wing-rotor interference. Aircraft performance was calculated using estimates of the aircraft drag and auxiliary propulsion efficiency. The performance metric is total power, in terms of equivalent aircraft lift-to-drag ratio L/D = WV/P for cruise, and figure of merit for hover. |
| File Size | 6694957 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20080047713 |
| Archival Resource Key | ark:/13960/t8z946s60 |
| Language | English |
| Publisher Date | 2007-10-15 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Design, Testing And Performance Tilt Rotor Aircraft Aerodynamic Configurations Lift Drag Ratio Compound Helicopters Rotary Wing Aircraft Auxiliary Propulsion Hovering Figure of Merit Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
