One-and-Onlies: The Complete List

All the Smithsonian’s one-of-a-kind aircraft

A Wiseman-Cooke biplane hanging in the National Postal Museum, one of the Smithsonian's one-of-a-kinds. (Eric Long/NASM)

(Continued from page 3)

Boeing 367-80 (one of a kind)

Douglas M-2 (sole survivor)

Northrop Alpha (sole survivor)

Northrop Gamma Polar Star (sole survivor)



Abrams Explorer (one of a kind)

Bellanca C.F. (one of a kind)

Curtiss Hawk 1A Gulfhawk (one of a kind)

Extra 260 (one of a kind)

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