1968-02-01

The Development of a Composite Main Rotor Blade for the Sud-Aviation SA-330 Helicopter 680693

This paper deals with the development of a steel spar/epoxy-glass envelope rotor blade for the Sud-Aviation SA-330 helicopter. It presents the reasons for this selection of materials instead of some of the more advanced fibers. It also points out how and why a transition into boron or carbon fibers might be made in a later version of the same blade.

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