The world's leading magazine for all model boating interests

Subscribe
The Modelling Hub Logo

The world's leading magazine for all model boating interests

Subscribe
Buy Latest Issue

Forums

Help

Register

Log in

Which Propeller?

Advert
New Replies
Report Bug
Help/FAQs

Which Propeller?

Home › Forums › Scratch build › Which Propeller?

  • This topic is empty.
Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • 16 July 2009 at 16:09 #22041
    Rick Devonshire
    Participant
      @rickdevonshire
      I am currently constructing a 34″ model of the RAF Crash Tender (from an original Aerokits plan – a retro project). I am using twin 545 motors to power it and would like to ask members advice on which propellers to use – 2 bladed or 3 bladed and of what diameter?
      It is interesting to note that the full size craft had both motors rotating in the same direction.
      Rick Devonshire.
      16 July 2009 at 16:09 #6582
      Rick Devonshire
      Participant
        @rickdevonshire

        Choice of propellers for my RAF Crash Tender.

        17 July 2009 at 19:16 #22065
        ashley needham
        Participant
          @ashleyneedham69188

          Rick. As an interim suggestion, waiting for someone to reply who has built something similar, I  suggest a pair of nice brass three bladers would suit. They look nicer than plastic ones and generally have more pitch than said plastic items. As to size… I would have thought 35mm would suit the motors, assuming they are standard 540`s. I would also have thought that a prop in the 30-40mm bracket would look about right on the model. Its worth bearing in mind that the prop  has to suit the motor more than the boat, so if you want a slightly larger prop then perhaps a pair of 600 can-types might be a better match. Does the plan not indicate a size???   I am not a fan of two blade types unless its for outright speed.  Ashley

          18 July 2009 at 07:47 #22084
          Rick Devonshire
          Participant
            @rickdevonshire
            Thanks for your suggestions Ashley, I think I will probably start off with a couple of plastic ones initially then go for brass when I see how things go, as brass can be rather expensive. The plan being of 1950’s vintage indicates a 3.5cc i/c engine, rather messy and not welcome on many lakes these days.
            Rick.
             
            18 July 2009 at 09:33 #22088
            HS93
            Participant
              @hs9317166
              Have a look on the  http://modelfireboats.com/   there is a section on setups and what people are using whith what prop so no guessing plus lots of othere info
               
              peter
              18 July 2009 at 21:25 #22095
              ashley needham
              Participant
                @ashleyneedham69188

                In my experience its no good trying plastic props and then going on to brass ones as the characteristics are very different. I know thats not much use to you but there it is!  Ashley

              • Author
                Posts
              Viewing 6 posts - 1 through 6 (of 6 total)
              • Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

              Latest Replies
              Report Bug
              Code of Conduct
              Help & FAQs

              Code of conduct | Forum Help/FAQs

              Advert

              Latest Replies

              Home › Forums › Scratch build › Topics

              Viewing 25 topics - 1 through 25 (of 25 total)
              Viewing 25 topics - 1 through 25 (of 25 total)

              View full reply list.

              Advert

              Latest Issue

              Subscribe
              Buy Latest Issue

              Newsletter Sign-up

              Latest Replies