Turning a hard boat into a rib? - Page 2

chewy · 30 January 2011, 18:15

Quote:

Originally Posted by wiLlfish

yawksher nobburs downt messs

Evening sugar t!ts

Screaming04 · 30 January 2011, 18:23

I looked at the pics. In my humble opinion, if the toobs are merely decorative and have little or no functional purpose it is not a rib. Beautiful stepped hull race boat but the "RIB version" is not different than the hard boat.

I'll leave it to Cookee to explain what is to be gained by adding tubes to the design.

There is another builder in the UK that builds larger hard boats (cabin versions) with a very small rubber band on both sides. I dare say, to a purist, not a rib.

Sales gimmick yes, prevent dock damage yes, RIB no.

If RIB design was simply adding tubes to hard boats, why are we all running ribs? We all enjoy the performance we're getting with their unique design although some it seems, don't seem to recognize that there is any thing special about them at all...other than a couple of air filled bladders?

willk · 30 January 2011, 18:32

Quote:

Originally Posted by Screaming04

... although some it seems, don't seem to recognize that there is any thing special about them at all...other than a couple of air filled bladders?

By "some", do you mean the crowd over on Boatmad. They call them water-wings and say the RUDEST things about us

chewy · 30 January 2011, 18:35

So back to the topic if I "bolt" some tubes to a speed boat hull and they have "function and purpose" then it would be a RIB?

willk · 30 January 2011, 18:39

Quote:

Originally Posted by chewy

So back to the topic if I "bolt" some tubes to a speed boat hull and they have "function and purpose" then it would be a RIB?

Certainly!

The picture below shows a Redbay test pilot (Tom, I think) testing one of their early speedboat hulls (minus a bit of upperwork)

After a few laps, it was felt that tubes would be a positively beneficial addition

sarahscottiedog · 30 January 2011, 18:49

Quote:

Originally Posted by Screaming04

I looked at the pics. In my humble opinion, if the toobs are merely decorative and have little or no functional purpose it is not a rib. Beautiful stepped hull race boat but the "RIB version" is not different than the hard boat.

I'll leave it to Cookee to explain what is to be gained by adding tubes to the design.

There is another builder in the UK that builds larger hard boats (cabin versions) with a very small rubber band on both sides. I dare say, to a purist, not a rib.

Sales gimmick yes, prevent dock damage yes, RIB no.

If RIB design was simply adding tubes to hard boats, why are we all running ribs? We all enjoy the performance we're getting with their unique design although some it seems, don't seem to recognize that there is any thing special about them at all...other than a couple of air filled bladders?

For my 2 peneth worth I agree, none of these are a RIB. Not trying to be elitest, and I am not sure how you can put a scientific definition down, but gut feel definately says that is not a RIB !

Cookee · 30 January 2011, 19:31

Quote:

Originally Posted by willk

Oh man, when Cookee sees this, they're gonna havta shoot him in the ass with a tranquiliser dart. He was so looking forward to a tubed version of his new handcrafted hardboat.

He might still be OK though, it did look a bit "tippy"

There are any number of RIB marketed in the UK based on hard boat hulls - as it is common in the US it is easier to splash someone else's design (do a search for "splash" on Boatmad) and make you own moulds with a bit of modifying to get a predictably good handling boat that start from scratch.

I believe there was a US hull that reappeared under several different names with the same identical fault in the port spray rail forward!

The boat below was a conversion from a hard boat and we modified the design to make it a bit more pleasing to the eye! The boat handles just fine, is mare stable at rest and I think the reason that RIBs are so popular is that they install more confidence in the general buying public - as to whether a RIB is better than a hard boat that is down to personal preference!

wiLlfish · 30 January 2011, 20:15

Quote:

Originally Posted by Cookee

we modified the design to make it a bit more pleasing to the eye!

hooz iye?

paul tilley · 30 January 2011, 20:31

ribs that started life as hard boats are quite common ,for instance leeway from a phantom hull ,crompton from a phantom hull , Nick Barsch rib from a phantom hull ,plancrafts first ribs were from one their hard boat hulls , BWM rapier and its variants from a revenger hard boat , picton also made some ribs from their hardboat hulls .so to answer the original question yes it is possible to make good ribs from hardboats ,the largest we have been involved with was a 14mtr v-type that came from a hardboat hull and photos are on my web site www.tidel.biz .we are just about to tube an 11mtr version of the 14mtr hull .

Screaming04 · 30 January 2011, 20:35

Cookee, the problem I see with modifying a hard boat is that you're not taking advantage of the freedom a tube gives the V design.

My boat and many like it have 24-25 degrees of deadrise. I'd be hard pressed to find a production hard boat with that sort of deadrise to bolt tubes to. The 24+ deadrise gives an incredible advantage in a slop, I believe that's the part that makes the UK RIB's so popular in rough water... not the puffy rubrails.

Cagedbanana · 30 January 2011, 23:44

Hi I actually work in a school
not go to one

an my ideal hull would be a phantom 18 or 21, for tube lengths, I would want to race it but if potentially it could end up a disaster I won't risk it??
Thanks
chris

Cookee · 31 January 2011, 07:16

Quote:

Originally Posted by Cagedbanana

Hi I actually work in a school
not go to one

an my ideal hull would be a phantom 18 or 21, for tube lengths, I would want to race it but if potentially it could end up a disaster I won't risk it??
Thanks
chris

The Phantom 19 is a modified 18 by multiple OCR Champion Nick Barsch and Steve Baker (of Phantom) - in turn Nick turned the 19 into what is a very nice RIB - Neil Holmes also makes a Phantom Evolution RIB, many others have copied the design unofficially as Paul says - the thing is it would never be a disaster unless you bodged the job or chose the wrong hull despite what others have said ............

Cagedbanana · 31 January 2011, 07:27

Quote:

Originally Posted by Cookee

The Phantom 19 is a modified 18 by multiple OCR Champion Nick Barsch and Steve Baker (of Phantom) - in turn Nick turned the 19 into what is a very nice RIB - Neil Holmes also makes a Phantom Evolution RIB, many others have copied the design unofficially as Paul says - the thing is it would never be a disaster unless you bodged the job or chose the wrong hull despite what others have said ............

Hi thankyou so much for all you help and advice. the plan would be to buy a cheap phantom 18 and modify that, as allthough i wasnt aware Nick had made a 19ft phantom rib, i am sure they are still very expensive and hard to come by? Also if i did go ahead with this project as i am not to far away from you would you be able to assit with the parts im sure i would find too hard? In your opinion would doing it this way be a cost effective soloution to say purchasing a leeway or similar?
many thanks again for all you help and advice
Chris

Cookee · 31 January 2011, 08:44

Quote:

Originally Posted by Cagedbanana

In your opinion would doing it this way be a cost effective soloution to say purchasing a leeway or similar?

No of course not - to do all of that work would be anything but cost effective - on the other hand I wouldn't buy a Leeway either but that's my opinion!

Cagedbanana · 31 January 2011, 09:15

Quote:

Originally Posted by Cookee

No of course not - to do all of that work would be anything but cost effective - on the other hand I wouldn't buy a Leeway either but that's my opinion!

Oh ok then, an I assumed that would be your comment about the leeway rib, are the barsh design ribs like golddust I assume?

Cookee · 31 January 2011, 12:38

Quote:

Originally Posted by Cagedbanana

Oh ok then, an I assumed that would be your comment about the leeway rib, are the barsh design ribs like golddust I assume?

Don't think so, I think he's made a few - call Nick himself on 07770478911 or Neil Holmes for the Phantom Evolution

chewy · 31 January 2011, 18:27

I'd have a go at doing it, it'll be only as bad as you make it!
Paul Tilley at tidel.biz should be able to make some tubes for you.

willk · 31 January 2011, 18:32

Hmmmmm!

The man who makes boats says No
The man who rescues folks from sinking boats says Yes

I'm sure there's no agenda at work here

chewy · 31 January 2011, 20:09

Quote:

Originally Posted by willk

Hmmmmm!

The man who makes boats says No
The man who rescues folks from sinking boats says Yes

I'm sure there's no agenda at work here

When did he say no?

willk · 31 January 2011, 20:22

Quote:

Originally Posted by Cagedbanana

In your opinion would doing it this way be a cost effective soloution to say purchasing a leeway or similar?

Quote:

Originally Posted by Cookee

No of course not - to do all of that work would be anything but cost effective

Quote:

Originally Posted by chewy

When did he say no?

Tha mus reed rite an quik an' tra t'keep oop, lad