1873. Rotocraft Weight Trends in Light of Structureal Material Characteristics

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Paper

C Ingalls, W Z Stepniewski: 1873. Rotocraft Weight Trends in Light of Structureal Material Characteristics. In: 48th Annual Conference, Alexandria, Virginia, May 22-24, pp. 35, Society of Allied Weight Engineers, Inc., Alexandria, Virginia, 1989.

 

Abstract

Variations in the weights of rotorcraft and their components due to advanced materials use are the topics of this study. The impact of new materials on component weights is illustrated by historical weight trends. The influence of structural material characteristics on the relative weight levels of rotorcraft components, the weight effectiveness, for both static and cyclical loadings is reviewed. Cursory expressions are developed to permit estimation of the effect of structural material strength effectiveness values on component weights. Special constraints which could limit possible weight reductions are considered briefly. Advanced structural materials that exhibit superior weight reduction potential are identified.

 

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