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  • Q10555

    The most common material used in the construction of gearbox casings is:

    Ans: Magnesium Alloy

    I have searched the notes for this but have not found anything? I am just wondering why they would choose a metal with the following properties to construct a gearbox:

    1) Very low operating temperatures
    2) A high susceptibility to corrosion

    Many thanks
    __________________
    Lloyd

  • #2
    I was quite interested in a similar question about rotor brakes. Put in to keep the wobblyheads happy?
    Fly Safely

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    • #3
      Q10555

      The question should be in the helicopter section ! but does infact relate to fixed wing aircraft as well.

      In choosing a material for use in a certain application it is unuasual to find a material that meets all the requirements of the task required. You observations on the propereties of magnesium alloy are correct, but it also has the property of being very light and strong ! Which would be advantages to the task required in this example.


      John H

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