Go Back  Offshoreonly.com > Owners Forum > Apache
Prop Slip on a 36 >

Prop Slip on a 36

Notices

Prop Slip on a 36

Thread Tools
 
Old 06-26-2015 | 12:48 PM
  #11  
Hessdk's Avatar
Registered
20 Year Member
 
Joined: Oct 2001
Posts: 172
Likes: 5
From: Virginia
Default

Originally Posted by Leathl_WS6
Can you tell me where you are? Speed pitch horsepower!!

I know these boats are heavy and not so efficient, but even 18% seems high.

Wonder if that's the norm??

Anyone else?
My best numbers are: 88 MPH on GPS @ 5300 RPM. Mercury Racing 575 SCi's, with labbed 32" 4 blade Bravos. I have a slightly ligher 36' with a single step. In my opinion, I don't think you will get a 36' Apache to have slip numbers lower than 16 or 17%.
Hessdk is offline  
Reply
Old 07-20-2015 | 09:08 PM
  #12  
Panther's Avatar
Frank's Marine Service
20 Year Member
Gold Member
 
Joined: Sep 2002
Posts: 11,959
Likes: 142
From: Elkton, MD
Default

I'm running 12% slip. 1.30 ratio, 26" Bravo1, 5700-5800rpm, 92.3 mph on gps.

For a bravo 1 subtract 1" of pitch when you factor your numbers.
Panther is offline  
Reply
Old 07-21-2015 | 07:15 AM
  #13  
Leathl_WS6's Avatar
Thread Starter
Registered
 
Joined: Jun 2003
Posts: 686
Likes: 0
From: Amherst Ohio
Default

Originally Posted by Panther
I'm running 12% slip. 1.30 ratio, 26" Bravo1, 5700-5800rpm, 92.3 mph on gps.

For a bravo 1 subtract 1" of pitch when you factor your numbers.
Interesting, why do you drop 1 on pitch for a Bravo one prop? I could live with those slip numbers... What kind of power are you making? And is yours a full cabin?
Leathl_WS6 is offline  
Reply
Old 07-28-2015 | 02:40 PM
  #14  
Panther's Avatar
Frank's Marine Service
20 Year Member
Gold Member
 
Joined: Sep 2002
Posts: 11,959
Likes: 142
From: Elkton, MD
Default

You drop an inch because a B1 prop is variable pitch. It's not a true pitch prop like a Hydromotive QIV. Bobby will tell you that you should see similar slip numbers as mine with the flat bottom models. My boat would also be faster if I had XR's but you loose 2-3mph with the BMax. The step bottom models will have higher slip but better top end. Also, you can't gauge your slip by your mid-range, you have to run WOT.

When I ran the 92.3mph I had 875hp engines. Now the engines are 964hp and I haven't had good enough conditions to really see what she can do wit the new power. I'm expecting mid 90's.

For those of us who use our Apache's, see below;
https://youtu.be/lEqFPYBB6Vw

Last edited by Panther; 07-28-2015 at 02:44 PM.
Panther is offline  
Reply
Old 07-28-2015 | 07:20 PM
  #15  
Ike's Avatar
Ike
Charter Member#93
25 Year Member
Charter Member
 
Joined: Oct 2000
Posts: 1,131
Likes: 13
From: The Burbs
Default

For those of us who use our Apache's, see below;
https://youtu.be/lEqFPYBB6Vw [/QUOTE]

I guess I can't watch the video
__________________
Gellner Engineering 1025"s
Ike is offline  
Reply
Old 07-30-2015 | 12:59 AM
  #16  
Panther's Avatar
Frank's Marine Service
20 Year Member
Gold Member
 
Joined: Sep 2002
Posts: 11,959
Likes: 142
From: Elkton, MD
Default

I shed a tear every time I drive by Norms shop!
Panther 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.