The folks at NASA are working on a pilot-less, rocket-powered airplane to perform an Aerial Regional-scale Environmental Survey of Mars ("ARES" for short). If eventually deployed, the ARES Mars Airplane will record information previously unobtainable on the atmosphere, surface and interior of Mars. The ARES design team has posted a 1:36 scale papercraft version of the Mars Airplane that actually flies. Look at the bottom of the page here to find the template.
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