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Cant buy a good fast one, so make your own!

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  • Cant buy a good fast one, so make your own!

    Started the process of making our own propellers...finished prop will be posted soon.
    IMG_7760 (1).jpg
    IMG_7752.jpg
    IMG_7758.jpg




  • #2
    Fantastic effort very best of luck to you
    522P



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    • fbref5269
      fbref5269 commented
      Editing a comment
      hey george, give jon mauck a call today if you can.

      frank novotny
      52-E

  • #3
    Stage two, welded and slicked off! IMG_7819.jpg



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    • #4
      prop.jpg prop2.jpg
      Last edited by john527; 10-24-2019, 06:54 AM.



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      • #5
        pitch 3.jpg pitch 1.jpg Pitched and ready for thinning!



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        • #6
          Do you know the pitch values of that pitch block?
          "Keep Move'n" life is catching up!
          No man's life, liberty or property are safe while the legislature is in session.

          Comment


          • #7
            I was alway under the impression props were poured. I had no idea that the blades could be welded on. Interesting. Nice work. Hope it screams for ya!

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            • Harold8
              Harold8 commented
              Editing a comment
              I could be wrong, but I think the first stock outboard 3 blades were cut up 2 blades and welded together.

            • john527
              john527 commented
              Editing a comment
              Your right, Dick Sidor and the Sobel's were the ones making them

            • deeougee
              deeougee commented
              Editing a comment
              Lots of people were making them this way, RF, RH, VB, Cylipski (??? spelling), Dewald and others. I don’t know who made the first one. Know Ron Hill was doing them back in 1977, don’t know if any were made before then. I think they were making 3 blades in Europe back in the 60’s. If you look inside the hub of a prop and see 3 lines going up the full length of the hub 120 degrees apart it is a welded prop from 2 blades. John’s method of making props is not the first time this has been done, but it is not common either, but it is very effective.

          • #8
            Most are cast to a specific pitch then worked to fine tune with grinding and polishing
            "Keep Move'n" life is catching up!
            No man's life, liberty or property are safe while the legislature is in session.

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            • #9
              This one is very fine tuned!



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              • ZUL8TR
                ZUL8TR commented
                Editing a comment
                Looks great, do you have the pitch details? What pitch did you start at the root (hub)?

            • #10
              IMG_8059.jpg Pitched and ready to thin!
              IMG_8059.jpg

              IMG_8063.jpg


              Attached Files
              Last edited by john527; 11-11-2019, 05:29 AM.



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              • #11
                IMG_8093.jpg Time to start polishing!



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                • #12
                  More blanks burned out today... prop blanks.jpg



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                  • #13
                    What classes are you making these for? Some Europeans use this method also.
                    sigpic

                    Dean F. Hobart

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                    • #14
                      Originally posted by deanfhobart View Post
                      what classes are you making these for? Some europeans use this method also.
                      750mh



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                      • #15
                        prop1.jpg First one is finished... prop1 a.jpg



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