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Kirsten-boeing Propeller (1926)
NASA Technical Reports Server (NTRS) · leaf 9
Figs..1.4 2 N.A.C.A. Technical Memorandum No.351 [Resultant of thrust oomppneiitti Fig.l Diagram of propeller. … Fig.2 Path of each blade.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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