Go Back  Offshoreonly.com > Technical > General Q & A
Prop Direction >

Prop Direction

Notices

Prop Direction

Thread Tools
 
Old 03-15-2014 | 02:07 PM
  #1  
35fountain's Avatar
Thread Starter
VIP Member
15 Year Member
VIP Member
 
Joined: Jul 2009
Posts: 783
Likes: 51
From: NJ
Default Prop Direction

Hi, On my 35 fountain the props turn in and when docking the boat is a pain to park. I plan on reversing the shift cables and make the props turn out. I know the boat will behave great while docking but I am curious what it will do while cruising and at top end. The hull has no steps.

Any Ideas?

Thanks
35fountain is offline  
Reply
Old 03-15-2014 | 06:09 PM
  #2  
Registered
10 Year Member
 
Joined: Feb 2012
Posts: 4,031
Likes: 10
From: westville, NJ
Default

turning props in usually is done to help stern lift. so It might be a bit harder to get up on plane. but remember to switch props too...
dereknkathy is offline  
Reply
Old 03-15-2014 | 10:00 PM
  #3  
Registered
20 Year Member
 
Joined: Jul 2004
Posts: 11,332
Likes: 73
From: chicago
Default

Incorrect. Props turning "IN", give bow lift. Props turning "OUT" give stern lift.

Most if not all Fountain hulls, prefer turning "IN". Try it and see if you like it turning out. My guess is you will probably lose a bit of WOT speed.
MILD THUNDER is offline  
Reply
Old 03-16-2014 | 11:42 AM
  #4  
35fountain's Avatar
Thread Starter
VIP Member
15 Year Member
VIP Member
 
Joined: Jul 2009
Posts: 783
Likes: 51
From: NJ
Default

Yes I hear 3-5 mph.. That's ok but if it hurts my cruising speed then I will switch back to turning in.. Thanks for your input
35fountain is offline  
Reply
Old 03-16-2014 | 12:01 PM
  #5  
Registered
20 Year Member
 
Joined: Jul 2004
Posts: 11,332
Likes: 73
From: chicago
Default

If docking is your beef with them turning in, try trimming the drives up while manuevering around the docks. Helps a bit. I know my Fountain with the props turning in, can be $hitty backing up.

Im not sure how fast your boat goes, but 3-5mph seems a little high, esp if its like a 65mph boat. Let us know how it responds to the rotation change.
MILD THUNDER is offline  
Reply
Old 03-16-2014 | 03:21 PM
  #6  
35fountain's Avatar
Thread Starter
VIP Member
15 Year Member
VIP Member
 
Joined: Jul 2009
Posts: 783
Likes: 51
From: NJ
Default

The boat does 80 mph...Most of the time i'm at 55mph..Rarely at full throttle, once in awhile a quick boost for a minute. I like to keep the fuel in the tank lol

My old 29 Baja, The props turned out, I was able to maneuver backing up parallel parking so easy..I'll see what happens with the fountain.
35fountain is offline  
Reply
Old 03-16-2014 | 06:14 PM
  #7  
US1 Fountain's Avatar
Ginger or Mary Ann?
25 Year Member
Charter Member
 
Joined: Oct 2000
Posts: 11,030
Likes: 9
From: L
Default

I swapped mine to turn out, do to docking was a huge PITA! I tend to recall 1 mph was what I saw as a loss, but this has been some 7-8 yrs ago. Definitly not more than 2.The boat feels 100x more stable to me. With them spinning in, it felt so light and liked to dance around. My thoughts have always been as far as loosing top end.....I'm around docks and other boats every time the boat is used. I run WOT for a few seconds, maybe a couple times a yr.
__________________
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
US1 Fountain is offline  
Reply
Old 03-17-2014 | 06:19 AM
  #8  
35fountain's Avatar
Thread Starter
VIP Member
15 Year Member
VIP Member
 
Joined: Jul 2009
Posts: 783
Likes: 51
From: NJ
Default

Originally Posted by US1 Fountain
I swapped mine to turn out, do to docking was a huge PITA! I tend to recall 1 mph was what I saw as a loss, but this has been some 7-8 yrs ago. Definitly not more than 2.The boat feels 100x more stable to me. With them spinning in, it felt so light and liked to dance around. My thoughts have always been as far as loosing top end.....I'm around docks and other boats every time the boat is used. I run WOT for a few seconds, maybe a couple times a yr.
We seem to run our boats the same way. Who cares about a few mph.
35fountain is offline  
Reply
Old 03-17-2014 | 08:39 AM
  #9  
Registered
20 Year Member
 
Joined: Jul 2004
Posts: 11,332
Likes: 73
From: chicago
Default

On my non stepped 38, I tried turning out. I lost 3-4mph top end, and the boat ran much too flat. However, I have SSM 4 drives with 15 deg cleaver props, so totally different than a bravo boat. Reversing does suck quite a bit with them turning in, but I've learned to live with it. I prefer turning in, not so much for the speed, but i just like the way the boat carries better. I boat in calm and rough waters, when its calm, the added bow lift seems to help keep the boat from running too ''wet''.
MILD THUNDER is offline  
Reply
Old 03-17-2014 | 01:31 PM
  #10  
35fountain's Avatar
Thread Starter
VIP Member
15 Year Member
VIP Member
 
Joined: Jul 2009
Posts: 783
Likes: 51
From: NJ
Default

With the props turning in I noticed many times that setting my trim at 2.5 while cruising @ 50 the boat would porpoise easily on smooth water .My Bravo1 drives have the large nose cones with the low water intakes on the cone . Maybe turning the props out will keep the nose more stable and stop the porpoising.

Last edited by 35fountain; 03-17-2014 at 02:15 PM.
35fountain is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.