Curtiss-Bleecker SX-5-1 Helicopter (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Curtiss-Bleecker SX-5-1 Helicopter" in English language version.

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Global rank English rank

3^rd place

books.google.com

"New Plane May Fly Straight Up in Air." Popular Science Monthly, September 1930, pp. 20–21.
Bowers, Peter M. (1979). Curtiss Aircraft, 1907–1947. Naval Institute Press. ISBN 978-0-87021-152-2.
Leishman, J. Gordon (24 April 2006). Principles of Helicopter Aerodynamics with CD Extra. Cambridge University Press. p. 27. ISBN 978-0-521-85860-1.