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Deceleration for atmospheric reentry, especially for higher-speed Mars-return missions, benefits from maximizing "the drag area of the entry system. The larger the diameter of the aeroshell, the bigger the payload can be." [60] An inflatable aeroshell provides one alternative for enlarging the drag area with a low-mass design.
The primary goal was to have the RV change its path during reentry so that anti-ballistic missiles (ABMs) would not be able to track their movements rapidly enough for a successful interception. The first known example was the Alpha Draco tests of 1959, followed by the Boost Glide Reentry Vehicle (BGRV) test series, ASSET [16] and PRIME. [17]
Maneuvering reentry vehicles MARV (instead of symmetrically shaped warheads) induce lateral drag during reentry and hence strongly bend the trajectory, thus deceiving lower altitude interceptor systems that generally assume a straight decelerating trajectory and which have a limited terminal guidance maneuverability and course correction ...
Allen was interested in the full range of aerodynamics research, and made contributions to the study of subsonic, transonic, supersonic and hypersonic flow. [2] When the United States became interested in the design of ballistic missiles, Allen began research in the dynamics and thermodynamics of atmospheric reentry, as well as the effects of radiation and meteorites on space vehicles.
There are two general reasons to use MARV. One is to make it more difficult to track the re-entry vehicle (RV) and thereby make it more difficult to attack as it approaches its target. This was particularly useful against early anti-ballistic missile (ABM) systems which took seconds to calculate an interception course. Making random trajectory ...
Reentry capsules have typically been smaller than 5 meters (16 feet) in diameter due to launch vehicle aerodynamic requirements. The capsule design is both volumetrically efficient and structurally strong, so it is typically possible to construct small capsules of performance comparable to lifting body or spaceplane designs in all but lift-to ...
Aerodynamic heating is the heating of a solid body produced by its high-speed passage through air. In science and engineering, an understanding of aerodynamic heating is necessary for predicting the behaviour of meteoroids which enter the Earth's atmosphere, to ensure spacecraft safely survive atmospheric reentry, and for the design of high-speed aircraft and missiles.
The waverider design concept was first developed by Terence Nonweiler of the Queen's University of Belfast, and first described in print in 1951 as a re-entry vehicle. [3] It consisted of a delta-wing platform with a low wing loading to provide considerable surface area to dump the heat of re-entry.