Reply
 
Thread Tools Search this Thread
 
Old 27 September 2008, 16:55   #1
Member
 
Country: UK - England
Length: 4m +
Join Date: Sep 2008
Posts: 3
Which 4m engine/hull combination?

I am thinking of buying a 4m RIB and wondered if anyone has any ideas as to the best hull /outboard for the sea?I would like a 50hp on the back but am wondering if I could get away with a 60hp or would that be too much weight for the transom?Thanks,Dick.
__________________
mobydick is offline   Reply With Quote
Old 27 September 2008, 16:58   #2
Member
 
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
My 4m avon is for sale with 50 hp on the back - put doel fins on it to balance it out. If your inthe area your welcome to come for a spin to get an idea !
__________________
PeterM is offline   Reply With Quote
Old 27 September 2008, 17:11   #3
Member
 
Country: UK - England
Length: 4m +
Join Date: Sep 2008
Posts: 3
Thanks for offer but I wont be buying till next year and I am 400miles from you.What sort of speed do you get out of your outfit?
__________________
mobydick is offline   Reply With Quote
Old 27 September 2008, 17:18   #4
Member
 
Country: UK - England
Town: Dorset & Hants
Boat name: Streaker/Orange
Make: Avon/Ribcraft
Length: 4m +
Engine: 50Yam/25 Mariner
Join Date: Apr 2007
Posts: 5,551
About 30 kts max , was a bit more till I fitted the fins. Went for the max to ski etc, but it really is tail heavy. If you can I'd say go for a 4.5 /4.8 of somekind with a 60 , or an 2 stoke of some kind instead of 4s .
__________________
PeterM is offline   Reply With Quote
Old 27 September 2008, 17:33   #5
RIBnet admin team
 
Poly's Avatar
 
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: Tohatsu 30HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 11,622
Quote:
Originally Posted by mobydick View Post
I am thinking of buying a 4m RIB and wondered if anyone has any ideas as to the best hull /outboard for the sea?I would like a 50hp on the back but am wondering if I could get away with a 60hp or would that be too much weight for the transom?Thanks,Dick.
moby that strikes me as a really odd way to go about 'speccing a boat'. the engine will depend on the boat (e.g. my own boat is rated to 30HP, but some heavier boats are rated for 40 or 50 HP), in reality both boats could perform similarly: lighter hull, lighter engine, less fuel on board (for same range), possibly shallower V etc. another boat may be more suited to extreme weather but then in those conditions you probably won't want/need all the power for top speed either.

So I would pick the hull first, then go with the engine that gives the desired performance with that hull. Oh - and don't fall into the bigger is better trap with engines. There are disadvantes to too much power beyond just the transom weight.
__________________
Poly is offline   Reply With Quote
Old 27 September 2008, 17:43   #6
Member
 
Country: UK - England
Length: 4m +
Join Date: Sep 2008
Posts: 3
Good points.Who makes the most seaworthy 4m[avon searider?].
__________________
mobydick is offline   Reply With Quote
Old 27 September 2008, 21:08   #7
Member
 
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
Quote:
Originally Posted by mobydick View Post
Good points.Who makes the most seaworthy 4m[avon searider?].
Yep
A SR4 with a 3 cylinder Yam 50 2-stroke and you'll be smiling for a long time
__________________
Downhilldai is offline   Reply With Quote
Old 28 September 2008, 23:14   #8
Member
 
Tim M's Avatar
 
Country: France
Town: Côte d'Azur
Boat name: Beaver Patrol
Make: Avon Searider SR4
Length: 4m +
Join Date: Jan 2004
Posts: 5,934
Quote:
Originally Posted by mobydick View Post
Good points.Who makes the most seaworthy 4m[avon searider?].
Ribcraft 4.8
__________________
Tim M is offline   Reply With Quote
Old 29 September 2008, 19:23   #9
Member
 
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
Quote:
Originally Posted by Tim M View Post
Ribcraft 4.8
How about a 6.5 Vipermax?
__________________
Downhilldai is offline   Reply With Quote
Reply

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




All times are GMT. The time now is 12:40.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.