NASA AD-1

Rarity: Common

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Invention

Domain

Science and technology

Knowledge cost

3

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What Wikipedia says

The NASA AD-1 is both an aircraft and an associated flight test program conducted between 1979 and 1982 at the NASA Dryden Flight Research Center, Edwards California, which successfully demonstrated an aircraft wing that could be pivoted obliquely from zero to 60 degrees during flight.

Excerpt from the Wikipedia article “NASA AD-1”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: NASA/, Public domain, via Wikimedia Commons.