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Kay 331 gyroplane (British) : all-metal single-seat light rotor plane (1935)

NASA Technical Reports Server (NTRS) · leaf 8

An illustration from Kay 331 gyroplane (British) : all-metal single-seat light rotor plane, 1935, leaf 8 — Figs. 2,3 N.A.C.A. Aircraft Circular No. 198 Figure 3.-The rotor-hub and pylon of the Kay gyroplane.

NASA Technical Reports Server (NTRS)

Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.

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