Thread Tools Search this Thread
Old 27 August 2013, 05:16   #1
Country: UK - Wales
Town: N Wales Chester
Boat name: Mr Smith
Make: Humber
Length: 6m +
Join Date: Feb 2009
Posts: 4,955
What determines the max hp on a small rib/sib?

My 2.5m Avon RIB is rated to 4hp, yet there seems to be 3m ish SIBs and RIBs that take 15hp 20hp even 30hp.

With a hard hull for the transom to attach to, I'd have envisaged i could put a Twatsoo 9.8 on the back. The 2hp 90's merc is about half it's weight i think....

Any thoughts?

Other than that it would be fun.

HUMBER P4VWL is offline   Reply With Quote
Old 27 August 2013, 05:46   #2
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,538
I guess it's probably CE ratings or something - either down to how well the transom is attached to the hull or it could become ridiculously unstable at speed.....

...which brings you back to fun!
9D280 is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 07:01.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.