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)

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Autogiro Company of America AC-35 (one of a kind)

Bell Model 30 Ship 1A Genevieve (one of a kind)

Bell Model 65 ATV (one of a kind)

Bell XV-15 (sole survivor)

Bensen B-6 (one of a kind)

Berliner 1924 Helicopter (one of a kind)

Cierva C.8W (one of two survivors)

Convair XFY-1 (one of a kind)

Curtiss-Wright X-100 (one of a kind)

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