Go Back   RIBnet Forums > RIB talk > RIBs & ribbing

Reply
 
Thread Tools Search this Thread
 
Old 04 June 2004, 21:38   #1
Member
 
Country: Norway
Join Date: Oct 2003
Posts: 155
High speed turn with 9m. rib

What is the normal way for a 9 m. rib with two outboards to handle if thrown into a tight turn doing 50 knots on flat water? Is it to slide sideways and suddely grab the water hard and then bouce to the other side throwing everybody in the water?
Fjordrafting is offline   Reply With Quote
Old 05 June 2004, 06:19   #2
Member
 
tim griffin's Avatar
 
Country: UK - England
Town: Newport IoW
Boat name: Amean/Pronto/Rumbo
Make: Solent Rib Princess
Length: 7m +
Engine: 200hp Etec 260x 2
MMSI: lots of them
Join Date: Sep 2003
Posts: 1,583
silly question but are you trimming the engine in before the turn or leaving it up, if up you are going to lose grip and slide and bounce as you suggest
regards tim
www.griffmarineservices.co.uk
__________________
Tim Griffin
RYA and RLSS UK Training and Rescue Centre
www.griffmarineservices.co.uk/offers.html
07876 623124
tim griffin is offline   Reply With Quote
Old 05 June 2004, 17:51   #3
Member
 
Country: Norway
Join Date: Oct 2003
Posts: 155
I always go with the engines leveled on the middle, read from the meter, exept when accelerating.
Fjordrafting is offline   Reply With Quote
Old 05 June 2004, 19:10   #4
Member
 
tim griffin's Avatar
 
Country: UK - England
Town: Newport IoW
Boat name: Amean/Pronto/Rumbo
Make: Solent Rib Princess
Length: 7m +
Engine: 200hp Etec 260x 2
MMSI: lots of them
Join Date: Sep 2003
Posts: 1,583
try trimming in more ie fully down for tight turns or maybe you need trim tabs as well to get her tracking better without seeing pictures or having a go its a bit of guess work really
any near you with similar setup or can you get access to manufacturer for advice
sorry not much help
regards tim
www.griffmarineservices.co.uk
__________________
Tim Griffin
RYA and RLSS UK Training and Rescue Centre
www.griffmarineservices.co.uk/offers.html
07876 623124
tim griffin is offline   Reply With Quote
Old 06 June 2004, 00:54   #5
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 4,627
I'm not sure I'd want to throw it into a turn at 50mph with full down trim. Depends on the boat but I'd take care.
__________________
JW.
jwalker is offline   Reply With Quote
Old 06 June 2004, 21:24   #6
Administrator
 
Country: UK - England
Town: Brighton
Make: Bombard Aerotec 380
Length: 3m +
Engine: Yamaha 15hp 2-stroke
Join Date: May 2000
Posts: 5,227
Agreed. You could quite easily end up with the stern overtaking the bow rather rapidly!

John
John Kennett is offline   Reply With Quote
Old 07 June 2004, 09:22   #7
Trade member
 
Cookee's Avatar
 
Country: UK - England
Town: Salcombe, Devon, UK
Boat name: BananaShark
Make: BananaShark
Length: 10m +
Engine: 2xYanmar 260 diesels
Join Date: Mar 2003
Posts: 3,607
The only reason to do this is in an emergancy or for the RCD which is built up to slowly and should only be tried by a very experienced skipper!


If you're going to do it I agree with JW and JK - a bit of trim will give the bow less chance to hook and throw everyone out!
More trim also helps the boat bank a bit although this is dependant on the hull design.
__________________
Cookee
Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
Cookee is offline   Reply With Quote
Old 07 June 2004, 10:32   #8
Member
 
Country: UK - England
Town: London/Hamble
Boat name: Hot Mustard
Make: BWM
Length: 6m +
Engine: Mariner 90
Join Date: Apr 2004
Posts: 124
Quote:
Originally Posted by Cookee
The only reason to do this is in an emergancy or for the RCD which is built up to slowly and should only be tried by a very experienced skipper!


If you're going to do it I agree with JW and JK - a bit of trim will give the bow less chance to hook and throw everyone out!
More trim also helps the boat bank a bit although this is dependant on the hull design.
What is an RCD?
__________________
http://www.hotcapers.com
Bajan is offline   Reply With Quote
Old 07 June 2004, 10:38   #9
Trade member
 
Cookee's Avatar
 
Country: UK - England
Town: Salcombe, Devon, UK
Boat name: BananaShark
Make: BananaShark
Length: 10m +
Engine: 2xYanmar 260 diesels
Join Date: Mar 2003
Posts: 3,607
Quote:
Originally Posted by Bajan
What is an RCD?
It stands for Recreational Craft Directive and is what you have to go through to get your CE mark so you can sell any boat in the EU.

Hope that explains it all,
__________________
Cookee
Originally Posted by Zippy
When a boat looks that good who needs tubes!!!
Cookee is offline   Reply With Quote
Old 07 June 2004, 10:39   #10
Member
 
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 4,627
Quote:
Originally Posted by Bajan
What is an RCD?
Recreational Craft Directive.
__________________
JW.
jwalker 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




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

RV & Travel Trailer Communities

Our RV & Travel Trailer sites encompasses virtually all types of Recreational Vehicles, from brand-specific to general RV communities.

» More about our RV 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 2002-2012 Social Knowledge, LLC All Rights Reserved.

All times are GMT. The time now is 15:18.


RIB News Delivered to your Email!

Stay up-to-date with RIB news in your inbox!

unsusbcribe at anytime with one click

Close [X]