Results 1 to 5 of 5

Thread: Need help picking a prop for a 30” tunnel hull with a tfl ourboard

  1. #1

    Default Need help picking a prop for a 30” tunnel hull with a tfl ourboard

    Hey all, I need help selecting a prop for my tunnel hull. It’s a 30” hull with a tfl outboard with an sss 3660 2075kv motor (The one for sale on this site) which will be run on 4s. The prop shaft is 4mm w/ a drive dog which limits prop selection a bit. I would also prefer to buy a fully finished prop and am happy to pay the premium for it. Any help would be greatly appreciated!

  2. #2

    Default

    You can buy a 4mm to 3/16 prop adapter on this site for $2. I would also suggest the CNC Aluminum props OSE has also. No need to balance. Go with 42-44mm 2 blades. They have detounged 1.6 pitch ratio also. 42mm there.
    Mic

    Mic Halbrehder
    IMPBA 8656
    NAMBA 1414

  3. #3

    Default

    That’s great info, thanks!

  4. #4

    Default

    The motor can accommodate as large as a 48 mm prop, would there be any benefit to a larger prop over a smaller one?

  5. #5

    Default

    With a 3660/2075kv motor going over 45mm in diameter will just load the motor. Every hull needs a certain diameter or actually blade area to push the hull at a given speed. Sometimes going smaller in diameter and just increasing pitch will be more efficient. That's the "black art" in propeller selection. Finding the just enough prop, but not too much.
    Mic

    Mic Halbrehder
    IMPBA 8656
    NAMBA 1414

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •