4 blade cupped or 3 blade?

Discussion in 'Prop Shop' started by FtIslandTrailMan, Oct 15, 2012.

  1. FtIslandTrailMan

    FtIslandTrailMan Bug Slinger !

    175
    1
    91
    I currently have a 4 blade cupped prop on my 17ft mitzi. I do about 27-28 mph. What would the speed difference be with a 3 blade?
     
  2. swaddict

    swaddict Thread Killer

    693
    43
    403
    You could probably see a 3-5 mph difference
     

  3. Copperhead8

    Copperhead8 I Love microskiff.com!

    138
    0
    341
    Again I say -- call Ken at propgods in Sarasota. I have a three blade on my Banshee and my buddy has a 4 blade on his - both powertech. My boat goes about 4 to 5 mph faster and they get up on plane "about" the same. To be honest, his a little better, but not much. Call Ken - you will not be sorry. My prop is a modified 3 blade powertech - with a change in the cupping and some holes drilled in it to allow it to pick up rpms faster.
     
  4. MariettaMike

    MariettaMike Wish'n I was Fish'n!

    1,909
    900
    978
    If its the same pitch maybe less.