Reply
 
Thread Tools Search this Thread
 
Old 07 September 2018, 05:22   #1
Member
 
Country: UK - England
Town: Dorset
Length: 6m +
Join Date: May 2013
Posts: 159
Knackered baffles - Options?

I've recently picked up a tired but solid tornado 6.4 that is currently having some much needed TLC.

The hull is in good condition but the tubes need some work. There are a few minor leaks but I can patch these easily. The bigger problem is that all the 5 chambers inflate and deflate together so the internal baffles must be shot. I suspect this is due to the tubes being stored deflated for a number of years stressing the joints.

Unfortunately there isn't enough in the budget to retube and as it will be used as a dive boat new tubes would just get scuffed up anyway.

So my question is what options do I have?

As far as I can see it they are as follows:

1. leave as is - accept the risk. Have spent many hours on ribs and never had a catastrophic puncture. Carry some clamseal temporary repairs and a high volume pump in the event of a problem.

2. Insert some emergency bags such as ones sold by henshaws. They seem to be only as a temporary repair though and not a permanent solution?

3. Try and get a tube specialist to cut into tubes and insert new baffles. Potentially could this be done in a new location to avoid peeling apart old seems?

Anyone else done something different or got any ideas on which is best way to go?

Thanks in advance.
__________________
CUSAC is offline   Reply With Quote
Old 07 September 2018, 06:34   #2
Member
 
Country: Ireland
Town: Castlebar
Boat name: Clewless
Make: Valiant DR 490
Length: 4m +
Engine: 60 hp ETEC
MMSI: Awaitng one
Join Date: Oct 2007
Posts: 1,339
RIBase
I don't know the answer however the dive club (assuming the boat is for a dive club) is currently not safe. Observation of life has thaugh me that serious incidents rarely are the result of a single factor but a chain of events which of themselves are small. E.g the rib is loaded with divers. Tube starts to leak. The boat now sits lower in the water and water enters the engine or electrical system as a result the battery I'd dead and now you have no vhf to summon help. I would class this as a very serious safety concern and would not use the boat until resolved.

Tsm
__________________
two stroke mick is offline   Reply With Quote
Old 07 September 2018, 07:24   #3
Member
 
Country: UK - England
Town: Dorset
Length: 6m +
Join Date: May 2013
Posts: 159
Quote:
Originally Posted by two stroke mick View Post
I don't know the answer however the dive club (assuming the boat is for a dive club) is currently not safe. Observation of life has thaugh me that serious incidents rarely are the result of a single factor but a chain of events which of themselves are small. E.g the rib is loaded with divers. Tube starts to leak. The boat now sits lower in the water and water enters the engine or electrical system as a result the battery I'd dead and now you have no vhf to summon help. I would class this as a very serious safety concern and would not use the boat until resolved.

Tsm
Nope not for a dive club. Purely personal use. And not currently in use so no issues (will have EPIRB on board once functional as well).

I agree regarding your comments regarding progressive failures however as with everything there is a risk based way to look at things. Would never argue functioning baffles are not safer but from a pragmatic view point how many RIB owners have suffered such tube issues I wonder.

Just looking for potential solutions that won't break the bank at the moment before I progress in whichever direction.
__________________
CUSAC is offline   Reply With Quote
Old 07 September 2018, 08:47   #4
Member
 
Country: UK - England
Town: southampton
Make: ribeye
Length: 6m +
Engine: 140 suzuki
Join Date: Jul 2006
Posts: 337
Just a quick look and something like this Rubber Bladders, Inflatables, Air Bag Manufacturers

may be an idea, well you you get my drift....

Happened to my tubes as kids used the tubes as trampoline diving in water. When eventually punctured and all fully deflated out in the Solent it was surprising perfectly ok. Looked stupid but the deck stayed totally normal and perfectly dry to get home. Thought then at the time....why have tubes at all. It was like a paddle board with an engine, great fun.
__________________
ribber is offline   Reply With Quote
Old 07 September 2018, 08:55   #5
Member
 
telecast's Avatar
 
Country: UK - Scotland
Town: Kingussie
Boat name: Puffin
Make: NorthCraft / XS
Length: 5m +
Engine: Mariner 60
MMSI: 232019541
Join Date: Mar 2011
Posts: 81
Knackered baffles - Options?

I have faced this recently - but on a 5M with only 2 baffles.

I opens up the nearest seam (heat gun and pull carefully ) then got head and shoulder into the tube and dealt with the mess - worst bit was someone had used some sort of sealant in the tubes - what a mess.

Long horrible job - and getting the seam back together had a few moments - but if you work carefully and are used to doing this sort of thing it’s possible.Click image for larger version

Name:	IMG_4924.jpg
Views:	237
Size:	86.5 KB
ID:	126755Click image for larger version

Name:	IMG_4931.JPG
Views:	256
Size:	138.7 KB
ID:	126756
__________________
telecast is offline   Reply With Quote
Old 07 September 2018, 08:57   #6
Member
 
telecast's Avatar
 
Country: UK - Scotland
Town: Kingussie
Boat name: Puffin
Make: NorthCraft / XS
Length: 5m +
Engine: Mariner 60
MMSI: 232019541
Join Date: Mar 2011
Posts: 81
Was just wondering how many people test whether the baffles are intact ?
__________________
telecast is offline   Reply With Quote
Old 07 September 2018, 10:05   #7
Member
 
Pikey Dave's Avatar
 
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 11,864
RIBase
Quote:
Originally Posted by telecast View Post
Was just wondering how many people test whether the baffles are intact ?


Yup[emoji106]
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4:Don't feed the troll
Pikey Dave is offline   Reply With Quote
Old 07 September 2018, 11:29   #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
I personally wouldn’t take a boat as you describe to sea - your description suggests the tubes are pretty shot ie several leaks and knackered baffles. There’s a reason some boats are sold off cheap....
__________________
Tim M is offline   Reply With Quote
Old 07 September 2018, 11:33   #9
Member
 
Country: UK - England
Town: Dorset
Length: 6m +
Join Date: May 2013
Posts: 159
Quote:
Originally Posted by Tim M View Post
I personally wouldn’t take a boat as you describe to sea - your description suggests the tubes are pretty shot ie several leaks and knackered baffles. There’s a reason some boats are sold off cheap....
Maybe I should elaborate slightly. Leaks are very small in two localised positions. Tubes still stay well inflated for 3-4 days and the material is generally sound apart from some UV fading.
__________________
CUSAC is offline   Reply With Quote
Old 07 September 2018, 12:06   #10
Member
 
Country: UK - England
Town: Retford
Boat name: Spy-sea-one
Make: Excel 435
Length: 4m +
Engine: Suzuki Outboard/25/4
Join Date: Oct 2011
Posts: 7,441
RIBase
i think it's ribcraft sell bladders for emergency use i would be tempted to buy 2 or 3 and use them as baffles not saying it's the best way but better than it is now but i would fill with nitrogen not air can be done at the garage. medicine ball bladders might work too since they are bigger than most tubes just an idea
__________________
jeffstevens763@g is offline   Reply With Quote
Old 07 September 2018, 14:05   #11
Member
 
Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: S/R5.4/regal3760
Length: 10m +
Engine: Suzukidf70 2x6lp 315
Join Date: Jul 2009
Posts: 3,721
How quickly do the compartments leak into the adjoining compartments? Is it immediately or several hours or days? If its only slow migration into the adjoining compartment i think id probably be happy to use it. If it was likely a single puncture would cause immediate deflation of the entire tube then id likely be more cautious
Of course depending on the boat many dont rely on the tubes to float so could probably proceed totaly deflated
__________________
beamishken is offline   Reply With Quote
Old 07 September 2018, 17:18   #12
Member
 
Country: UK - England
Town: Dorset
Length: 6m +
Join Date: May 2013
Posts: 159
Quote:
Originally Posted by beamishken View Post
How quickly do the compartments leak into the adjoining compartments? Is it immediately or several hours or days? If its only slow migration into the adjoining compartment i think id probably be happy to use it. If it was likely a single puncture would cause immediate deflation of the entire tube then id likely be more cautious
Of course depending on the boat many dont rely on the tubes to float so could probably proceed totaly deflated
It is immediate unfortunately. I suspect it would be fine lightly loaded but with a decent amount of dive kit would probably need the tubes at rest.
__________________
CUSAC is offline   Reply With Quote
Old 07 September 2018, 21:26   #13
Member
 
Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: S/R5.4/regal3760
Length: 10m +
Engine: Suzukidf70 2x6lp 315
Join Date: Jul 2009
Posts: 3,721
Quote:
Originally Posted by CUSAC View Post
It is immediate unfortunately. I suspect it would be fine lightly loaded but with a decent amount of dive kit would probably need the tubes at rest.
Probably time to start saving for a retube I guess
__________________
beamishken is offline   Reply With Quote
Old 08 September 2018, 08:35   #14
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 CUSAC View Post
It is immediate unfortunately. I suspect it would be fine lightly loaded but with a decent amount of dive kit would probably need the tubes at rest.

You presumably have old polyurethane tubes on it - finding a repairer willing to try repairing the baffles will be hard work, likely come with no long term guarantees and cost a good chunk of the cost of replacement tubes.

A clamshell and a pump would help if one of your divers is clumsy with his knife but not it one of the old seams gave way. I think you have to consider that a realistic possibility and Sod’s law it will probably be more likely when you have a bunch of heavy divers sitting or climbing over them so the boat is heavily laden. If you are on the plane at the time and it’s not too choppy you can probably get back ashore (although the temptation to stop and investigate may trip you up). The boat is not just a delivery mechanism though - it’s a safety tool for the divers who pop up 1/4 of a mile from their dive site - if the boat has swamped whilst they are down below you will be no use to them.
__________________
Poly is offline   Reply With Quote
Old 08 September 2018, 11:17   #15
Member
 
Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: S/R5.4/regal3760
Length: 10m +
Engine: Suzukidf70 2x6lp 315
Join Date: Jul 2009
Posts: 3,721
To add to what Poly said, our sailing club had a bow seam fail on a polyeurothane boat and it went from holding air to a 300mm long gash where the seam let go within seconds so a clamshell wont be much good there
__________________
beamishken is offline   Reply With Quote
Old 08 September 2018, 11:26   #16
Member
 
Country: UK - England
Town: Dorset
Length: 6m +
Join Date: May 2013
Posts: 159
Thanks all. Good food for thought. Am down at SBS next week so think I will try and pick the brains of the tube repairers there to get an idea of costs of repair vs retube.
__________________
CUSAC is offline   Reply With Quote
Old 08 September 2018, 17:48   #17
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 CUSAC View Post
Thanks all. Good food for thought. Am down at SBS next week so think I will try and pick the brains of the tube repairers there to get an idea of costs of repair vs retube.


Ribshop have a stand there I think - well worth a chat [emoji106]
__________________
Tim M is offline   Reply With Quote
Old 08 September 2018, 18:41   #18
Member
 
Country: UK - England
Town: suffolk
Boat name: not yet
Make: Gemini
Length: 5m +
Engine: Suzuki 140
Join Date: Jan 2015
Posts: 1,272
noticed recently acouple of companies quoting prices online ,,, XS ribs prices are listed online ,and also ibs in essex are advertising fit yourself portugese manufactured tubes in pvc 5.8 metre about £3200 if they have the patterns
__________________
Orwell boy is offline   Reply With Quote
Old 08 September 2018, 19:30   #19
Member
 
Pikey Dave's Avatar
 
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 11,864
RIBase
Quote:
Originally Posted by Poly View Post
A clamshell and a pump would help if one of your divers is clumsy with his knife.....

I actually put a chisel through a RC585 tube (not mine) 20nm offshore. We completed the dive & came home. 4 divers+kit+ cox
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4:Don't feed the troll
Pikey Dave is offline   Reply With Quote
Old 08 September 2018, 20:07   #20
RIBnet Supporter
 
willk's Avatar
 
Country: Ireland
Length: 4m +
Join Date: Feb 2008
Posts: 14,666
Quote:
Originally Posted by CUSAC View Post
Would never argue functioning baffles are not safer but from a pragmatic view point how many RIB owners have suffered such tube issues I wonder...
I've had a quick read over this thread and your comment above seems to be the nub of it. The answer is, I know of a worrying number of boats that have had tube punctures/massive failures. They all had baffles and made it home. Your scow won't if the worst happens. IMO, all that wishful thinking about pumps and clamshells is pie in the sky. Baffles exist for a reason. Even a SIB tender has three compartments. You need a retube. Sorry.
__________________
I'm sorry, but there IS no Mars Bar.
willk 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 10:57.


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