The use of high lift-to-drag hypersonic vehicles for aero-assisted orbital maneuvering

Details The use of high lift-to-drag hypersonic vehicles for aero-assisted orbital maneuvering The use of high lift-to-drag hypersonic vehicles for aero-assisted orbital maneuvering

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990isaa.conf..107l&link_type=abstract

In Israel Society of Aeronautics and Astronautics, 31st Israel Annual Conference on Aviation and Astronautics p 107-119 (SEE N92

Astronomy and Astrophysics

Astronomy

Aeroassist, Aeromaneuvering, Bow Waves, Descent Trajectories, Flow Distribution, Hypersonic Vehicles, Shock Waves, Spacecraft Trajectories, Waveriders, Aerobraking, Atmospheric Entry, Lift Drag Ratio, Planetary Atmospheres, Swingby Technique, Terrestrial Planets

Scientific paper

The benefits of using a hypersonic waverider for spacecraft trajectory modification are presented. A waverider is a hypersonic vehicle specifically designed so that the undersurface bow shock is attached to the leading edge, which provides for the highest known lift-to-drag ratios achievable at high Mach number flight. Several viable space missions are suggested which could use such configurations for low-drag aeroassisted maneuvers in planetary atmospheres. It is shown that large changes in the spacecraft velocity vector can be accomplished with acceptably small losses in energy due to drag using a waverider aeroshell. The primary advantage of an aeroassisted maneuver is suggested by comparison with a traditional gravity assist trajectory. Some scaling laws are presented for comparing waveriders designed for different planetary atmospheres, and it is shown that the compositional differences among the terrestrial planets have a minimal impact on waverider design.

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