Model tests on the economy and effectiveness of helicopter propellers /

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Bibliographic Details
Author / Creator:	Munk, Max M. (Max Michael), 1890- author.
Imprint:	[Washington, D.C.] : National Advisory Committee for Aeronautics, 1925.
Description:	1 online resource (26 pages, 5 unnumbered pages) : illustrations.
Language:	English
Series:	Technical notes / National Advisory Committee for Aeronautics ; No. 221 Technical note (United States. National Advisory Committee for Aeronautics) ; 221.
Subject:	Rotors (Helicopters) -- Aerodynamics -- Measurement. Propellers, Aerial. Propellers, Aerial. Rotors (Helicopters) -- Aerodynamics -- Measurement.
Format:	E-Resource U.S. Federal Government Document Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/12316501

Hidden Bibliographic Details
Other authors / contributors:	United States. National Advisory Committee for Aeronautics, issuing body.
Notes:	No Federal Depository Library Program (FDLP) item number. Includes bibliographical reference (page 26). Description based on online resource, PDF version; title from title page (TRAIL, viewed May 15, 2020).
Other form:	Print version: Munk, Max M. Model tests on the economy and effectiveness of helicopter propellers
GPO item no.:	9999 (online)
Govt.docs classification:	Y 3.N 21/5:6/221

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