le dimanche 5 juin 2011 01:17, s'est penché sur son écritoire numérique:

I was channel surfing the other day, and caught a glimpse of how they
make rotor blades for the Hind MI-8 helicopter on RT. (Russian News)
Very Interesting. They use small sections of metal (aluminum?)
honeycomb cut to the shape of the airfoil, align it them with the spar
on the leading and trailing edges, and then filament wind the whole
lot together, preesumably with carbon fiber.

If you see the French process, blades are made from prepreg layouts and, for the core, a resin
becoming foam during the cure. The mold is a two parts heavy metal machined block and the cure
time one or two days in an oven.

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http://www.youtube.com/watch?v=1ODCf7J8L0o
Philippe Vessaire Ò¿Ó¬