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Mid-air Retrieval
Mid-air retrieval is a technique used in atmospheric reentry when the reentering vehicle is incapable of a satisfactory unassisted landing. The vehicle is slowed by means of parachutes, and then a specially-equipped aircraft matches the vehicle's trajectory and catches it in mid-air. This is a risky technique, and so is only used when other forms of landing are infeasible. Successful mid-air retrieval requires correct operation of the retrieving aircraft, favourable atmospheric conditions, and successful execution of a tricky manoeuvre, in addition to correct operation of the vehicle itself. These risks can be mitigated somewhat: for example, multiple recovery aircraft can be used. The need for human aviators to perform a manoeuvre which would normally be classed as a stunt may in the future be avoided by advances in unmanned aerial vehicles. Notable uses of the technique: * The first use of midair retrieval was in 1955, with Fairchild C-119 Flying Boxcar transports being used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genesis Retrieval
Genesis may refer to: Bible * Book of Genesis, the first book of the biblical scriptures of both Judaism and Christianity, describing the creation of the Earth and of mankind * Genesis creation narrative, the first several chapters of the Book of Genesis, which describes the origin of the Earth * Genesis Rabbah, a midrash probably written between 300 and 500 CE with some later additions, comprising a collection of interpretations of the Book of Genesis Literature and comics * Genesis (DC Comics), a 1997 DC Comics crossover * Genesis (Marvel Comics), a Marvel Comics supervillain * Genesis, a fictional character in the comic book series ''Preacher'' * ''Genesis'', a 1951 story by H. Beam Piper * ''Genesis: The Origins of Man and the Universe'', a 1982 science text by John Gribbin * ''Genesis'', a 1988 epic poem by Frederick Turner * ''Genesis'', a 2000 story by Poul Anderson * ''Genesis'' (novel), a 2006 work by Bernard Beckett * ''Genesis'', a 2007 story by Paul Chafe * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |