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Old 18 March 2006, 14:21   #1
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building a rib

my brother and i want to build a rib we have a small boatyard in the north of new zealand we just do anti fouling, general boat building,fibre-glassing etc etc. we are going to build a 8-10m rib, a commercial rib much like the ocean dynamics or redbay, with twin engines. the rib would be used as a volunteer life boat for the bay of islands and needs to be able to take on heavy weather. what other heavy duty ribs would you look at to get inspirtion. all opinions would be great
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Old 18 March 2006, 14:37   #2
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rayglass protector.
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Old 18 March 2006, 15:06   #3
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Ring Powercraft
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Old 18 March 2006, 15:32   #4
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rayglass are not what i was thinking they are a little pretty. they have a good hull but they are a little close to home i think being built in auckland. and they dont like to fit hamilton jets in there ribs, which i like.

ring are a great racing rib but they are a little light weight for what i want. i looked at the ring hull and was not that impressed. however they definately have the speed

what about the big deltas,humbers etc. have a look at this http://www.woodymarinefabrication.co...iad/custom.htm this is what i want, the 12m but make it as a 10m. is there any good rib manufacturers in the netherlands ? i was there and saw a great rib but i was sailing the other way and am still trying to find out what it was.
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Old 18 March 2006, 15:45   #5
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You'll find Jardon Marine, Surrey, England very helpful and forthcoming with advice.
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Old 18 March 2006, 15:51   #6
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Quote:
light weight
A 10,5m (3,05m beam) with console, seatings and tanks is 2,000 kg (ex electronics and engines), only tubes and hull is 1,320 kg.
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Old 18 March 2006, 16:09   #7
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i have not been out on a 10m ring so i can not say what they are like at that size. however we are looking at building a rib that weighs in at between 6,500- 8,000 kgs when its all done, the ring 10.5 weighs in at 4,000 odd kgs at the end with all engines etc etc. plus the bow is quite low and doesn't suit the weather conditions, and i dont need all the speed of a ring. i need a rib that does 30-40 knt max but can sustain 25-30 in all weather conditions.
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Old 18 March 2006, 16:24   #8
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Will you have a cabin on it or are you talking open boat, 8 tons on a 10m, thats 800kg per meter in a open boat, for me it wouldnt be any advantages in the ruff seas at a speed of 30 knots, than i would go for a longer waterline instead.


Quote:
plus the bow is quite low
You are right, maybe to low
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Old 18 March 2006, 16:28   #9
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You also have Halmatic Cabin and Halmatic open, MST, TP Marine in Holland, Boomeranger in Finland, Rupert Marine in Sweden
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Old 18 March 2006, 16:40   #10
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the rib must have a cabin not for sleeping but a space for a stretcher and have seating for 6. the halmatic is a nice rib have you been in one? what are they like? do they have a outside helm ? what do you think is best fibreglass or aluminium ribs?
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