what are helicopter rotor blades made from?

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  • 1 decade ago
    Best Answer

    compressed paper

  • 1 decade ago

    Well, I have been out of the flying game for quite a while, but the Bell 47 D-1 had a wood blade, That was my first helicopter on which I trained. They have progressed through just about every metal since then and now (or at least when I retired in 1991), they were made out of composite carbon fiber usually with a stainless steel leading edge to reduce wear

    Source(s): ATP, SEMEL&S Rotor-craft helicopter
  • 1 decade ago

    In the past they were metallic, mainly aluminum, but today they are usually a sandwich of composite materials(carbon fiber, Kevlar, fiberglass) with honeycomb in the middle.

    Usually fiberglass because carbon fiber and especially Kevlar are hygroscopic, that means that their mechanical characteristics are damaged by water.

    Source(s): I am a Aerospace Engineering student
  • 1 decade ago

    many are made from titanium the same as jet aircraft engine rotor blades.

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  • 1 decade ago

    Alloys of Titanium, and some are made from Kevlar I believe.

  • 1 decade ago

    can b of titanium.but nt pure titanium...it's in alloyed form......composites are also used in makin the helicopter light weight and stealthy....basically composites are more into military helicopters!!!!!!!

  • Anonymous
    1 decade ago

    High poly carbon fiber

  • 1 decade ago

    Sometimes an alloy, or kevlar/carbon fibre. or wood.

  • Anonymous
    1 decade ago

    Aluminium is also used.

  • Dan
    Lv 4
    1 decade ago

    look it up

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