An extensive overview has been carried out on the Aerodynamic Transport Efficiency, as defined by Gabrielli and von Karman, of General Aviation aircraft, using data from many published sources, including the 1988 and 1989 Tri-aviathon races and the 1970 Oshkosh Aircraft Efficiency Contest races. The best result from the races was an efficiency of 6.19 at 91 m/s (204 MPH) for a four-seat aircraft. It was also shown that an efficiency of 14.8 can be achieved with a NASA fuselage/wake-propeller configuration and 12.9 with a Navy fuselage/pressure-thrust configuration of comparable gross weight and speed. On the basis of the Kraus cruise Figure-of-merit, this would mean that new advanced aircraft would have the same merit value as used conventional aircraft, for the same purchase price; thus the buyer would be strongly motivated to buy the new aircraft, revitalizing the General Aviation industry.
Aerodynamic Transport Efficiency of General Aviation: An Overview
1990
20 pages
Report
Keine Angabe
Englisch
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