Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Results 1 to 2 of 2

  1. #1
    Croc Man's Avatar
    Join Date
    Feb 2011
    Location
    Mulgoa, AUSTRALIA
    Posts
    3
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    Length from Stern?

    Hi, on a 40inch flat bottom build, with a 31cc Zenoah, what would be the distance back from the stern that would be a good starting point for
    the Engine? Does 7inches sound correct from stern to piston centre? Cheers.

  2. #2
    1QwkSport2.5r's Avatar
    Join Date
    Oct 2006
    Location
    Cottage Grove, MN
    Posts
    5,640
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback
    Quote Originally Posted by Croc Man View Post
    Hi, on a 40inch flat bottom build, with a 31cc Zenoah, what would be the distance back from the stern that would be a good starting point for
    the Engine? Does 7inches sound correct from stern to piston centre? Cheers.
    Pusher or puller prop will define where you should start. Generally you want the prop at about 1/3 (hull length) from the transom/stern. On a 40" hull that's about 13.3". This is for a puller configuration and is a starting point only. Either puller or pusher will require moving the engine around to find the perfect balance. I don't use pusher configurations on any of my boats so I can't give you a starting point for that. I don't believe the same "rule" applies to pushers.
    GlowHead Brotherhood #3
    I don't need the Internet, my wife knows everything.



Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -6. The time now is 11:25 PM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.