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9 bolt holes?

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  • 9 bolt holes?

    Hi there,

    I saw a picture on the internet of a propeller with 9 holes? is this normal?
    the owner claims that the wooden prop is from the 20's.
    length; 3 meters. Is does has some indentification but don't know yet what it is: 13.. ES
    and some other numbers

    greetings,
    Roland

  • #2
    Yes, 9 bolt holes is certainly possible and not unheard of although very unusual. The markings will hopefully tell the better story. A vast majority of aircraft props have either 6 or 8 bolt holes.

    Lamar

    I must have been out of my mind yesterday as I had to edit this post to correct the number of bolt holes in most props.

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    • #3
      I make this post simply to highlight the fact that I may have mis-informed some concerning the usual number of bolt holes.

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