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Mate-Demate Device
A Mate-Demate Device (MDD) is a specialized crane designed to lift a Space Shuttle orbiter onto and off of the back of a Shuttle Carrier Aircraft. Four Mate-Demate Devices were built.
== Armstrong Flight Research Center MDD ==
The first MDD was located at NASA's Armstrong Flight Research Center on Edwards Air Force Base, California .〔(【引用サイトリンク】title=NASA Armstrong Fact Sheet: Shuttle Mate-Demate Device (MDD) )〕 Construction of the MDD was completed in late 1976.〔 It was first used during mate-demate operations with the prototype Space Shuttle Enterprise during the five Approach and Landing Tests (ALT) in 1977.〔 It was then used for post-landing and Shuttle Carrier Aircraft mating operations at NASA Armstrong following shuttle orbital missions that landed at Edwards.〔 Fifty-four of the 135 shuttle missions landed at Edwards between STS-1 in 1981 through STS-128 in 2009.〔 All but one (STS-3) of these flights landed at Edwards instead. This MDD was used to hoist a Space Shuttle orbiter onto a Shuttle Carrier Aircraft for the flight back to Florida.〔(【引用サイトリンク】title=NASA Dryden Fact Sheet - Shuttle Mate-Demate Device (MDD) )〕 The MDD was dismantled in 2014 following the retirement of Space Shuttle.〔(【引用サイトリンク】title=An Era Ends, but Another Begins at NASA Armstrong )〕〔(【引用サイトリンク】title=NASA Armstrong's Space Shuttle Mate-Demate Device Coming Down )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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