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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]
Practical development of reentry systems began as the range, and reentry velocity of ballistic missiles increased. For early short-range missiles, like the V-2 , stabilization and aerodynamic stress were important issues (many V-2s broke apart during reentry), but heating was not a serious problem.
Soyuz TMA reentry capsule after landing, 2005. A reentry capsule is the portion of a space capsule which returns to Earth following a spaceflight. The shape is determined partly by aerodynamics; a capsule is aerodynamically stable falling blunt end first, which allows only the blunt end to require a heat shield for atmospheric entry. A crewed ...
Small-scale model of the Soviet/Russian Ayaks aircraft exposed at the 1993 MAKS Air Show, Moscow. It is still currently under development. A waverider is a hypersonic aircraft design that improves its supersonic lift-to-drag ratio by using the shock waves being generated by its own flight as a lifting surface, a phenomenon known as compression ...
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.
An early design for SpaceShipOne called for a shuttlecock-like shape that would have made it incapable of landing independently, necessitating mid-air retrieval. This was deemed too risky, and the final design made the spacecraft capable of independent horizontal landing while retaining the desired aerodynamic qualities for the early part of ...
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 ...
Data from The X-planes: X-1 to X-29 General characteristics Length: 6 ft 8 in (2.03 m) Wingspan: 3 ft 10 in (1.17 m) Height: 2 ft 10 in (0.86 m) Gross weight: 894 lb (406 kg) Powerplant: × Nitrogen gas reaction control thrusters Performance Maximum speed: 14,388 kn (16,557 mph, 26,647 km/h) Maximum speed: Mach 25 Hypersonic L/D Ratio: 1:1 See also Aircraft of comparable role, configuration ...