NACA 354 (USDA RPT. #1079), AIRCRAFT WOODS - THEIR PROPERTIES, SELECTION, AND CHARACTERISTICS (OCT-1941) [REPRINT FROM NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS REPORT 354)

NACA 354 (USDA RPT. #1079), AIRCRAFT WOODS - THEIR PROPERTIES, SELECTION, AND CHARACTERISTICS (OCT-1941) [REPRINT FROM NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS REPORT 354)., This report presents, further, information on the properties of various other native species of wood compared with spruce, and discusses the characteristics of a considerable number of them from the standpoint of their possible application in aircraft manufacture to supplement the woods that are now most commonly used, Strength values et Various woods for aircraft design for a 15 percent moisture condition of material and a 3-secof 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.