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Old 30 January 2011, 12:31   #11
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I'm aware of the flare but again 24 foot length and 6 foot beam?! You must have some weird tippy boats over there! Standard beam on a hard 24 footer would be 8-9 feet. 18 footers are 7'6".

The reason that rib's perform so much better in rough water is because of their ability to be built with a narrow, rigid V... the tubes provide the floatation required to make up for the narrow beam at rest... (I'm aware that some tubes, like mine, stand clear at rest...but they're in the water as soon as a roll starts)

Show me a pic of a hard boat that has successfully been modified with toobs attached and make me a believer. Otherwise I stand by Vandad's experience and my opinion that it would be a huge waste of time/money/effort to attempt a conversion.
But you also have to remember that the mounting point for tubes is roughly in the centre and that the beam measurement for RIBs is between the tubes. This will explain the narrower RIB measurement relative to a hard boat.
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Old 30 January 2011, 12:36   #12
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I've been adding to my last post...

Hard boats, even with a decent deadrise have fairly wide flat sections (or reverse chines) outside of the V for stability...they are not seen on RIBs except perhaps in a "med style" hull... which we all agree on this site, is not what most of us like in a rib design.

You certainly could bolt tubes onto a rigid boat, in my opinion, you would have just that... a hard boat with tubes. Not a rib.
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Old 30 January 2011, 13:20   #13
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You certainly could bolt tubes onto a rigid boat, in my opinion, you would have just that... a hard boat with tubes. Not a rib.
So a what point would a hard boat with tubes become a RIB?

Ring seem to be doing ok....
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Old 30 January 2011, 13:51   #14
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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"
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Old 30 January 2011, 13:52   #15
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So a what point would a hard boat with tubes become a RIB?
Let me reverse that for you... is a hard boat with a bicycle tube attached a RIB?

Are you really this thick or just messing with me?
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Old 30 January 2011, 14:01   #16
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Let me reverse that for you... is a hard boat with a bicycle tube attached a RIB?

Are you really this thick or just messing with me?
How dare you!

It was a simple enough question which stemmed from you saying bolting tubes to a hard boat doesn't make a RIB.
So seen as you must know what is and what isn't a RIB can you define the cut off.... or are you really this thick?

Which of these is and isn't a RIB then and why, post 135:

http://rib.net/forum/showthread.php?t=33407&page=14
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Old 30 January 2011, 14:07   #17
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Where's Leeway when you need him?
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Old 30 January 2011, 14:10   #18
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Where's Leeway when you need him?
We need someone to DEFINE the cut off, not actually let rip with an angle grinder
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Old 30 January 2011, 14:13   #19
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Are you really this thick or just messing with me?
yawksher nobburs downt messs
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Old 30 January 2011, 14:14   #20
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We need someone to DEFINE the cut off, not actually let rip with an angle grinder
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