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|
Kay 331 Gyroplane (British): All-Metal Single-Seat Light Rotor Plane
| Year: | 1935 |
|---|---|
| Document Type: | N/A |
| Series: | NACA Aircraft Circulars |
| Report Number: | NACA-AC-198 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc64601/ |
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