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  • jeepman
    infrequent poster now
    • Apr 2004
    • 1986

    Propeller query

    What are the options - if indeed there are any at all - for sourcing and obtaining a steel two bladed pusher propeller of precisely 2.35m in diameter? The propeller wouldn't need to be airworthy as such but would need to be operational.

    Any advice or pointers would be gratefully received


    Thanks
    JM
  • Anon
    Mike Davey
    • Jan 2008
    • 2870

    #2
    Why does it have to be steel, jeepman?

    Anon.

    Comment

    • jeepman
      infrequent poster now
      • Apr 2004
      • 1986

      #3
      It's just that that's what the original was.

      Just musing about a reproduction project but if I can't source a propellor of the right size and appearance then there's no point in pursuing any further. There would probably need to be other compromises due to the difficulty of obtaining parts but the appearance of the propeller seems pretty well fixed.
      Last edited by Moggy C; 31st January 2015, 23:42. Reason: Quote of post directly above deleted
      JM

      Comment

      • Anon
        Mike Davey
        • Jan 2008
        • 2870

        #4
        Have you got more details, i.e., was it a fixed-pitch propeller or a one-piece unit?

        Was it originally specially made? Do you have a photo of the original you could post?

        Anon.

        Comment

        • jeepman
          infrequent poster now
          • Apr 2004
          • 1986

          #5
          It's for a possible reproduction of the RF-8 Aerosan
          Attached Files
          Last edited by Moggy C; 31st January 2015, 23:41. Reason: Quote of post directly above deleted
          JM

          Comment

          • Anon
            Mike Davey
            • Jan 2008
            • 2870

            #6
            That looks interesting.

            Seems like it has either a VP or a pitch-adjustable prop. Either way, it's a hub with separate blades. How do you know that the blades were made of steel, jeepman?

            Anon.

            Comment

            • jeepman
              infrequent poster now
              • Apr 2004
              • 1986

              #7
              The Gaz 98/ RF-8 used a steel propeller for durability whilst most of the other Aerosans used wooden propellers. When the RF-8 was redesigned to use the M-11G radial engine (as used in the Po-2) and redesignated Gaz 98K a wooden propeller was fitted. The Gaz98 was powered by a Gaz M-1 engine - which was a standard automotive unit based on a 4-cylinder Ford Model A design.
              Last edited by jeepman; 1st February 2015, 00:06.
              JM

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              • Anon
                Mike Davey
                • Jan 2008
                • 2870

                #8
                I can understand the need for a stronger prop as snow and other stuff would end up going through the prop and would soon damage anything less durable. It's probably an aero hub with some specially made blades.

                Would the blades be for a runner, or just a static example?

                Anon.

                Comment

                • jeepman
                  infrequent poster now
                  • Apr 2004
                  • 1986

                  #9
                  Originally posted by Anon View Post
                  I can understand the need for a stronger prop as snow and other stuff would end up going through the prop and would soon damage anything less durable. It's probably an aero hub with some specially made blades.

                  Would the blades be for a runner, or just a static example?

                  Anon.
                  Hopefully a runner - although there's the little issue of a 6:1 reduction gearbox to overcome first............
                  JM

                  Comment

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