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/sci/ - Science & Math

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>> No.12461212 [View]
File: 356 KB, 1200x1600, Eta_open_class_sailplane.jpg [View same] [iqdb] [saucenao] [google]
12461212

Why don't they just put wings (foldable maybe) on the aircrafts instead of having to use fuel or a thick heavy heat shield for slowing down when coming into the atmosphere? Just descend slow enough that all the generated heat has time to dissipate.

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