NASA NTRS · 19720000431
Twistable mold for helicopter blades
Abstract
Design is described of mold for fabrication of blades composed of sets of aerodynamic shells having same airfoil section characteristics but different distributions. Mold consists of opposing stacks of thin templates held together by long bolts. When bolts are loosened, templates can be set at different positions with respect to each other and then locked in place.
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Carter, E. S., Kiely, E. F.. 1972-12-01. Twistable mold for helicopter blades. https://ntrs.nasa.gov/citations/19720000431
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