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Aircraft woods: their properties, selection, and characteristics

NACA Report 354 , 1931

Markwardt, L J

Strength values of various woods for aircraft design for a 15 per cent moisture condition of material and a 3-second duration of stress are presented, and also a discussion of the various factors affecting the values. The toughness-test method of selecting wood is discussed, and a table of acceptance values for several species is given.