Flight-Measured Lift and Drag Characteristics of a Large, Flexible, High Supersonic Cruise Airplane
Arnaiz, Henry H. (1977) Flight-Measured Lift and Drag Characteristics of a Large, Flexible, High Supersonic Cruise Airplane. Technical Report NASA TM X-3532, Research Engineering, NASA Dryden Flight Research Center.
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Abstract
Flight measurements of lift, drag, and angle of attack were obtained for the XB-70 airplane, a large, flexible, high supersonic cruise airplane. This airplane had a length of over 57 meters (190 feet), a takeoff gross mass of over 226,800 kilograms (equivalent to 500,000 pounds), and a design cruise speed of Mach 3 at an altitude of 21,340 meters (70,000 feet). The performance measurements were made at Mach numbers from 0.72 to 3.07 and altitudes from approximately 7620 meters (25,000 feet) to 21,340 meters (70,000 feet). The measurements were made to provide data for evaluating the techniques presently being used to design and predict the performance of aircraft in this category. Such performance characteristics as drag polars, lift-curve slopes, and maximum lift-to-drag ratios were derived from the flight data. The base drag of the airplane, changes in airplane drag with changes in engine power setting at transonic speeds, and the magnitude of the drag components of the propulsion system are also discussed.
| EPrint Type: | NASA Technical Memorandum |
|---|---|
| Keywords: | Flight-measured performance, Airplane drag, Airplane lift and drag, XB-70 airplane |
| Subjects: | (01 - 09) Aeronautics: (05) Aircraft Design, Testing And Performance Aircraft/Project: XB-70 |
| ID Code: | 691 |
| Deposited On: | 14 Febuary 2006 |
| Additional Information: | 63 pages. |
