1. 3. Eairiy ÂîireraiFtf Sfîmuneîyres a. In aviation's early days, wood and fabric, reinforced by metal accessories, were strong enough to withstand the vibrations and torsional stresses occurring in slow flying aircraft. Main- tenance of the wooden parts had to be performed by highly skilled woodcraftsmen, and little metal repair was needed. b. With the need for higher speeds, greater payloads, and the consequent development of more powerful engines, wood became unsatis- factory. Engineers and manufacturers realized that structural parts made from metal would have to replace wood, so they developed light but strong metal alloys. To these they applied struc- tural forming and reinforcement methods to save more weight and provide the strength required for increased performance. Presetnfî Day Airemfi- SSrueflyres a.
DesignationFM 55-63
EditionJan 1974
StatusSuperseded
Pages408
FunctionSustainment
CollectionHistoric
Public domain (U.S. Government work)