Reply
 
Thread Tools Search this Thread
 
Old 31 July 2006, 16:40   #11
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,688
Quote:
Originally Posted by Polwart
I guess most of the time the tubes on a "real" rib are out of the water anyway
Harrumph!

The other sensible option would be if they made the Hypalon a sensible thickness. I was shocked by how flimsy it seemed when I was repairing mine a couple of months back, ok so it is quite tough stuff, but just imagine if it was say 3 or 4 times the thickness, it would be like crocodile skin can't imagine it would add that much to the weight of the boat, maybe 50-100kg? it would be sooo worth it....
__________________

__________________
BogMonster is offline   Reply With Quote
Old 31 July 2006, 16:51   #12
RIBnet admin team
 
Poly's Avatar
 
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 10,114
Quote:
Originally Posted by BogMonster
just imagine if it was say 3 or 4 times the thickness, it would be like crocodile skin can't imagine it would add that much to the weight of the boat, maybe 50-100kg? it would be sooo worth it....
mmm... a retube for your rib is probably 2-3k (guesswork). If the material was 4x as thick it would be even more expensive (maybe double?). But your tubes failed (if I remember correctly) at a seam - so its not the thickness of the material - but the adhesive (or preparation) that is the weak point? A thicker material might put more stress on the joints (more weight & less flexibility).
__________________
Poly is offline   Reply With Quote
Old 31 July 2006, 18:38   #13
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,688
Quote:
Originally Posted by Polwart
mmm... a retube for your rib is probably 2-3k (guesswork). If the material was 4x as thick it would be even more expensive (maybe double?). But your tubes failed (if I remember correctly) at a seam - so its not the thickness of the material - but the adhesive (or preparation) that is the weak point? A thicker material might put more stress on the joints (more weight & less flexibility).
It wasn't my particular failure I was thinking of just the general lightweight nature of the material which means if you bump into anything that isn't perfectly smooth I suppose you are likely to damage it. Point taken on cost, but if it lasted longer it would be worth it IMHO - when mine needs retubing it will be a throwaway job as there's nobody here that can do it and by that time it won't be worth paying the freight to UK (2 grand) and back again (another 2 grand) to end up with something that is still a 10 year old boat (or hopefully older ). You might be right on the joints though - then again if the material was 4x as thick there would still be 3 of those thicknesses left to wear through so its all swings and roundabouts I guess
__________________
BogMonster is offline   Reply With Quote
Old 31 July 2006, 18:51   #14
RIBnet admin team
 
Poly's Avatar
 
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: 2 stroke YAM 20 HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 10,114
I think hypalon might be tougher than you are giving it credit for. Sailing clubs use ribs quite successfully with minimal care. Indeed a few years ago a wooden dinghy I owned came off significantly worse in a collision with a rib (excess speed by the driver - but can't complain as she was "rescuing" me).

Don't worry stephen by the time your boat needs a retube you will be almost as good at patching as the legendary Paul Tilley and all you'll need is a shipment of hyaplon and some bostik - and you can knock yourself up a pretty new set in no time. (Alternatively I am sure there are a few tube makers here who can send you tubes for you to fit yourself). And if that's not an option then there is always the inner tube route.
__________________
Poly is offline   Reply With Quote
Old 31 July 2006, 21:19   #15
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,688
Quote:
Originally Posted by Polwart
Don't worry stephen by the time your boat needs a retube you will be almost as good at patching as the legendary Paul Tilley
Well I don't know about that; I hope what you are saying is that it will be a long time before I need new tubes rather than making a judgement on my sticking ability or suggesting that I will be doing a hell of a lot of it in years to come

I hope you are right; the early months of RIBownership were not exactly trouble free; I worry about what next summer holds (apart from huge fuel bills which I accept as a "necessary evil" )

I have the repair patches from Humber for mine now, and gallons of glue arrives in about 3 weeks, so as soon as the weather perks up I shall embark on a reckless sticking spree

I do like the idea of a "solid RIB" though - there just doesn't seem to be much around that "looks like a RIB" - i.e. an open boat with a natural high level of safe buoyancy (i.e. even a pillock like me couldn't sink it even if I was really trying) which looks quite cool and is bloody good fun. I wonder what you would call it - a RRB I suppose??
__________________
BogMonster is offline   Reply With Quote
Old 07 August 2006, 13:54   #16
Member
 
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,653
Quote:
Originally Posted by BogMonster
I do like the idea of a "solid RIB" though - there just doesn't seem to be much around that "looks like a RIB" - i.e. an open boat with a natural high level of safe buoyancy (i.e. even a pillock like me couldn't sink it even if I was really trying) which looks quite cool and is bloody good fun. I wonder what you would call it - a RRB I suppose??
http://www.safeboats.com/default/boats.html?boat=ccon

http://www.safeboats.com/default/boats.html?boat=ttop

and my favorite:

http://www.safeboats.com/default/boats.html?boat=rbs

jky
__________________
jyasaki is offline   Reply With Quote
Old 07 August 2006, 16:32   #17
Member
 
Country: Other
Town: Stanley, Falkland Is
Boat name: Seawolf
Make: Osprey Vipermax 5.8
Length: 5m +
Engine: Etec 150
Join Date: Mar 2006
Posts: 3,688
Mmmm an aluminium hulled RIB with a collar that can stop 7.62 rounds all sitting on a trailer with stainless steel disc brakes, I WANT!

Hate to think how much it costs if designed to that spec specifically for the Coast Guard though, I don't suppose $$$ are an issue when you're chasing $50m worth of drugs
__________________

__________________
BogMonster 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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 16:46.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.