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Old 04 March 2006, 04:15   #1
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Country: UK - England
Town: Poole
Boat name: Ouba of the Camber
Make: Cobra
Length: 8m +
Engine: Inboard diesel 315hp
Join Date: Mar 2006
Posts: 9
CobrarescuedbyRNLI

Hi all,
I'm new to owning a rib, boughta Cobra 8.5m last year. I had some experience of both sail and motorboats but not much. I completed the ICC late last year. Keen to use my rib, despite the weather I have been out about 5 times this winter with various problems with the boat - no reverse gear on return trip 1, no bilge pumps in force 6, no sterring b4 we got out, had all fixed and went out last week from Poole to Yarmouth. It was force 5/6 easterly and fought all the way into wind to Yarmouth. A few big splashes, making about 15knts, all in all good, but cold, fun. The water was trick at Hurst castle but boat handled ok. Set out on return been going about 5mins, following seas, much more pleasant, surfing waves 18-20knts then instead of climbing the next wave I can only assume I went through it, saw the begining of it, throttled up a little, next thing all is green, when cleared windscreen broken and boat completely full of water. Neither or passenger injured (couple of bumps from screen I think). Engine still going, all 3 pumps emptying boat so thought going to be Ok, kept going at about 6knts till engine stopped. Opened engine bay to discover half full of water including over batteries. At point called coastguard. Many thanks to the boat that stood by from Lyington and the fantastic RNLI from Yarmouth who collected us and the boat. I have some questions about insurance got boat startd next day changing wet electrics but won't start now, but my real question is how could I have avoided this- the RNLI tought I had been unlucky, whcih made me feel worse, it was very unpleasant. Also, would have been ok if engine bay hadn't filled up, surely that shouldn't happen. Going to fill boat with water (on land) to see how it gets in to bay. Plese constructive help, we all started out one day
P.S. I had all required safety gear (lifejackets, thermal blankets, handheld VF (phew), flares etc).
I'd load a phot of boat if Icould workout how - thanks in advance, great forum, love to read about A Priddy's adventures.
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Old 04 March 2006, 04:27   #2
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Country: USA
Boat name: The Boot
Make: Avon SR5.4
Length: 5m +
Engine: Suzuki DF70
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Posts: 270
Glad your ok. Sounds like conditions were too heavy and you just got unlucky and swamped. I don't think I could stomach a situation like that.
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Old 04 March 2006, 04:50   #3
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Quote:
Originally Posted by Jozz99
Also, would have been ok if engine bay hadn't filled up, surely that shouldn't happen. Going to fill boat with water (on land) to see how it gets in to bay.
No, it shouldn't.

It sounds to me like you were crusing in fairly ambitious conditions, but with decent deck drains (does you boat have "elephant trunk" bailers?) and without a swamped engine box you would probably have been OK. I've had RIBs full to the top of the tubes a couple of times and carried on with no problems.

Onthe other hand, going out in those sort of conditions does make you more vulnerable as mechanical failure is more likely and potentially more serious.

Sounds like you did OK though!

John
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Old 04 March 2006, 05:02   #4
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Country: UK - England
Town: Poole
Boat name: Ouba of the Camber
Make: Cobra
Length: 8m +
Engine: Inboard diesel 315hp
Join Date: Mar 2006
Posts: 9
Thanks, did Ok in that no-one was hurt, I hope it was inexperience so I can train and rectify!
There no deck drains, I assume 'cos of the bulkhead between seating area and engine bay?
A little further info - my experience has all beenon much larger boats, about 6 round the island races (sailing) on 45 -65ft and mtor about 45-66ft. Franky, you don't need to worry about the sea so much!
What I love about the rib is you are closer to the action. I am going to put myself on advanced powerboat course.
Waves were about 2.5m high with wavelength of about 15m.
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Old 04 March 2006, 05:08   #5
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Country: UK - England
Town: Nr Faversham, Kent
Boat name: C Rider
Make: Avon
Length: 5m +
Engine: Yam 80
Join Date: Jan 2005
Posts: 479
Welcome to Ribnet. A lot of useful information hidden in the threads, but start with a search for "stuffing". Sounds to me like you are keen to learn but lacking some experiance.
Some of your problems appear to stem from a lack of training, some are new boat gremlins. Not sure how much experience or training you have had, but would definately start with a RYA level 2 course, then as soon as you are ready, do an intermediate or advanced course. Level 2 will fill in any gaps in your knowledge and will prepare you for the intermediate course. Cost of the course can easily be mitigated by not getting into trouble and breaking things in the first place. There are many south coast training schools that will do an excellent job and help you along.

Have a chat with other similar size boat owners at the marina and see if you can buddy up for a few trips.

Best of luck, and hope to see you and your boat around, sounds like you have a nice package there, be nice to see some pictures.

Tim'mers.
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Old 04 March 2006, 05:23   #6
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Country: UK - England
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Boat name: Ouba of the Camber
Make: Cobra
Length: 8m +
Engine: Inboard diesel 315hp
Join Date: Mar 2006
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Thanks, I am defintely going to get some training. I've read a lot of the threads, what seemed unpredictable is instead of climbing the wave like all before went straight through. Ironically I was concerned about single engine so went for diesel as I perceived more reliable - if I can't either use elephant hoses for drainage or make engine bay more watertight then I'm switching to outboard.
I loaded a photo on photo section for anyone interested.
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Old 04 March 2006, 06:10   #7
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Firstly I'm happy you've emerged unscathed.

Your boat is too pretty. You'd be better off with a builder who understands the importance of building a rib which is worthy of the bread. Your engine compartment should not flood and you should have big drains in the hull.

Bad design. Besides anything else, it's has put you at risk and I bet it's going to cost you money too.

Yours is not the worst I know of. One reputable builder puts silly stainless steel louvres directly into the side of the engine box, facing forward to scoop the water AND directly inline with the engine air intake!

Having said that, it is the modern way. Form before function. There are plenty of examples of it on RIBnet.

It's not for me.

Again, I'm pleased you're ok.
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Old 04 March 2006, 07:42   #8
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Make: PBS humber 5.5
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Quote:
Originally Posted by jwalker
Yours is not the worst I know of. One reputable builder puts silly stainless steel louvres directly into the side of the engine box, facing forward to scoop the water AND directly inline with the engine air intake!

Having said that, it is the modern way. Form before function. There are plenty of examples of it on RIBnet.

It's not for me.
On this subject, 1 year down the line......

My engine bay has the louvres you describe above, and the engine bay has remained bone dry throughout the year including 1 small stuff.

The engine has no rust on it either.

Maybe not so 'silly'
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Old 04 March 2006, 08:08   #9
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Country: UK - England
Town: Poole
Boat name: Ouba of the Camber
Make: Cobra
Length: 8m +
Engine: Inboard diesel 315hp
Join Date: Mar 2006
Posts: 9
I had no problems before the boat filled with water so my guess is the engine bay filled through the ducting for control cables etc under deck?
I'll find out when I fill it with water.
It is possible to have form and function. Jordan's got good form and I bet.......:-)
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Old 04 March 2006, 08:46   #10
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Quote:
Originally Posted by Colin F
On this subject, 1 year down the line......

My engine bay has the louvres you describe above, and the engine bay has remained bone dry throughout the year including 1 small stuff.

The engine has no rust on it either.
Yeh, that's cool. How does it work? Do you have a hull which doesn't make any spray mist?

I've seen a conrod where the bigend and small end are touching, the rod section being bent double after a hydraulic.

Quote:
Maybe not so 'silly'
I maybe didn't phrase that well. It's not the louvres which are silly, more their placement which is silly.
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