how to you measure a prop to determine it's diameter

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • dasboata
    Fast Electric Addict!
    • Dec 2010
    • 3152

    #16
    Originally posted by egneg
    The indicator is turned 90* and a wiggler is attached.
    Whats a wiggler ? can I see some pics of it turned 90 * with the wiggler ? yhanks Chris

    Comment

    • egneg
      Fast Electric Addict!
      • Feb 2008
      • 4670

      #17
      Originally posted by dasboata
      Whats a wiggler ? can I see some pics of it turned 90 * with the wiggler ? yhanks Chris
      Sure ... I will take some pictures tomorrow.
      IMPBA 20481S D-12

      Comment

      • dasboata
        Fast Electric Addict!
        • Dec 2010
        • 3152

        #18
        And I will show you mine !!!! LOL

        Comment

        • egneg
          Fast Electric Addict!
          • Feb 2008
          • 4670

          #19
          Originally posted by dasboata
          And I will show you mine !!!! LOL
          We might end up in jail !

          IMPBA 20481S D-12

          Comment

          • Doug Smock
            Moderator
            • Apr 2007
            • 5272

            #20
            Originally posted by egneg
            We might end up in jail !

            Oh Noooooooooo!!
            MODEL BOAT RACER
            IMPBA President
            District 13 Director 2011- present
            IMPBA National Records Director 2009-2019
            IMPBA 19887L CD
            NAMBA 1169

            Comment

            • egneg
              Fast Electric Addict!
              • Feb 2008
              • 4670

              #21
              Originally posted by dasboata
              Whats a wiggler ? can I see some pics of it turned 90 * with the wiggler ? yhanks Chris
              This isn't the exact setup as I did this so you could see what a wiggler is.
              Attached Files
              IMPBA 20481S D-12

              Comment

              • dasboata
                Fast Electric Addict!
                • Dec 2010
                • 3152

                #22
                yea ok so how do you measure degrees of travel Its impossible to measure pitch with that angle and set up this is what you need
                Attached Files

                Comment

                • egneg
                  Fast Electric Addict!
                  • Feb 2008
                  • 4670

                  #23
                  I have the Hughey pitch gauge. to measure with. In the previous posts I said "check" blades to see if all things are equal. And the picture was not the setup but to show what a wiggler is.

                  Thanks for showing yours!
                  IMPBA 20481S D-12

                  Comment

                  • dasboata
                    Fast Electric Addict!
                    • Dec 2010
                    • 3152

                    #24
                    Originally posted by egneg
                    Thank you, it would be good to do a quick check. This is what I use to make sure all the blades match. I can also use it to check pitch with a gizmo I made.
                    OK thanks Chris

                    Comment

                    • properchopper
                      rcgoatbuild@snotmail.com
                      • Apr 2007
                      • 6968

                      #25
                      Originally posted by D.Smock
                      Kevin Sheren made these cool tools for checking diameter while making sure both blades are the same. 3/16 and 1/4" mandrels
                      When I got mine I was suprised how much some of my props were off.

                      Doug
                      It took me A WHILE to figure out that to get the correct/accurate reading of a prop's diameter using this tool that you have to add half the diamater of the prop holding shaft ( 1/2 4.76250mm = 2.381 mm) to the caliper reading, then double that number. Until I realized that, I thought that all my props were much smaller in diameter than claimed
                      Attached Files
                      2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
                      2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
                      '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

                      Comment

                      • dasboata
                        Fast Electric Addict!
                        • Dec 2010
                        • 3152

                        #26
                        Originally posted by properchopper
                        It took me A WHILE to figure out that to get the correct/accurate reading of a prop's diameter using this tool that you have to add half the diamater of the prop holding shaft ( 1/2 4.76250mm = 2.381 mm) to the caliper reading, then double that number. Until I realized that, I thought that all my props were much smaller in diameter than claimed
                        I have one from Kevin also,, the problem with them is that once in a wlile, you hit one of the buttons, by mistake, and it resets on you ,,then you have to take the alum block off to reset the thing !! other then that it is a good idea chris

                        Comment

                        Working...