Some Structural Considerations in the Design of the Chinook Helicopter 660667
The U. S. Army CH-47A Chinook is a transport helicopter developed by Boeing. Major considerations in the development of its structural integrity are discussed in this paper. Included is a description of fatigue analysis techniques which were developed to insure safe life of its critical components. This technique includes a mission profile, component fatigue strengths, use of top-of-scatter flight loads data, use of Miner’s rule of cumulative damage, and evaluation of possible anomalies on fatigue strengths and flight loads.