View Full Version : Aircraft Cruise L/D Ratios
Jane-DoH
15th Dec 2011, 20:56
I'm wondering if anybody has the cruise-mach L/D ratio figures for the following aircraft
DeHavilland Comet 1
Boeing 707-120
Boeing 707-320C
Douglas DC-8-30
Douglas DC-8-62
Douglas DC-9
McDonnell Douglas DC-10-30
McDonnell Douglas MD-11
Boeing 777-200LR
Airbus A-380
decurion
16th Dec 2011, 08:39
Table 1 and 2 of the following report should help you:
The initial calculation of range and mission fuel during conceptual design :: TU Delft Institutional Repository (http://repository.tudelft.nl/view/ir/uuid:a9956ab0-1db0-4140-8905-9c37a9313a81/)
Jane-DoH
22nd Dec 2011, 13:40
I don't know if I could really make use of this data
decurion
22nd Dec 2011, 14:28
it is all in report. Fig. 1 gives the engine efficieny as function of engine bypass ratio. For aircraft not listed you can do your own using payload range diagrams.
Jane-DoH
25th Dec 2011, 02:00
Uh, I'm not a pilot and don't really know payload range diagrams. I'm just wondering how a Comet compared to a 707, and how an L-1011 compared to them, and so forth