New Posts New Posts RSS Feed: V Twin
  FAQ FAQ  Forum Search   Register Register  Login Login

V Twin

 Post Reply Post Reply Page  <1 102103104105106 142>
Author
G.R.F. View Drop Down
Really should get out more
Really should get out more


Joined: 10 Aug 08
Location: United Kingdom
Online Status: Offline
Posts: 4028
Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Topic: V Twin
    Posted: 04 May 12 at 12:51pm
Well we and I include you in on this as you were around at the initial 'should we shouldn't we, could we couldn't we?' stage and it didn't seem appropriate to chuck the amount of money necessary to make it really light, before we knew wether or not it would 'work'.

At the time my concern was more toward wether the foils might cavitate in the tunnel than the issues that have since surfaced. All boats are stupidly heavy in my book, that's because they haven't moved with the times, there are sail cloths you could stretch over panels I couldn't put a pencil through, but that's not the issue here.

This is something pretty left field, so not something to chuck huge sums at until all the factors are known, but generally the point under discussion is why other established classes limit themselves to minimum weight when they should be striving for lighter and the argument for older boats doesn't hold water, we all know what happens at the top of any restricted class fleet, they all renew sails and boards/boats annually and the you're still competitive in an older <insert appropriate class> is bollox if only because of their mental state.
Back to Top
RS400atC View Drop Down
Really should get out more
Really should get out more


Joined: 04 Dec 08
Online Status: Offline
Posts: 3011
Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 04 May 12 at 1:26pm
Where is there a restricted class fleet that renews all its boats annually?
Probably the most competitive restricted class, the Merlin Rocket, had its nationals won by a boat several years old, despite that boat being beaten in most of the races by an even older boat. The Merlins could easily reduce their weight, it's been debated, as most of the boats less than 15 years old carry a fair amount of lead. But it is not in the interests of the class to do this, it would undermine the grass roots and open circuit where you get many older boats turn out for competitive racing.
Rather than warming over 90's designs with  a few kilos less, I would like to see a few new designs built lighter. Have there really been no advances in hull design since the RS400?
Yes a boat buit lighter might be more fragile, but it might also be nicer to sail, and faster for the same power.

The problem is not many people can afford a new boat on a speculative basis, it's much more sensible to buy a boat with a class rule behind it. That way it might cost the same, but the depreciation is reasonable.

Back to Top
pondmonkey View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 12 Aug 11
Online Status: Offline
Posts: 2202
Post Options Post Options   Quote pondmonkey Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 12 at 5:08pm
any photos of the damage?
Back to Top
Jack Sparrow View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 08 Feb 05
Location: United Kingdom
Online Status: Offline
Posts: 2965
Post Options Post Options   Quote Jack Sparrow Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 12 at 6:49pm
G.R.F...

I can't remember having a conversation with you about the 3.7 with regard to it's hull weight. Certainly not one where there was any passionate discussion ending with anyone being close minded.

The 50kg hull weight is there because it is an achievable weight that an amateur boat builder can realistically build to in wood. One of the great things about the class - plus 50kg is light especially when it only costs around £500 for the materials! But the class allows wooden boats to be built as light as 45kg. Dam light and achievable if your skills are up to it (Max 5kg correctors). The rules also allow composite hulls (which carry spinnaker equipment) to be built down to 35kg (Max 15kg correctors). So as not to handicap those wanting to sail for fun with the kite when (edit: (not) racing.

so... I'm sure if you wanted to build a composite boat that light and sail without correctors at your club. No one would mind. Just tell your race committee and put your correctors in if you come racing with us.

As for fleet numbers.

There are 4 boats being built (possibly another if G.R.F's mate builds over the winter), plus mine, so 5. With several interested people waiting for Dave Butler to finalize his costings and his demo boat.

So G.R.F why not join us and when the class is formally launched and it's appropriate, get enough signatures and votes for your ideas and you could change that close minded situation.





Edited by Jack Sparrow - 21 May 12 at 6:51pm
Back to Top
Rupert View Drop Down
Really should get out more
Really should get out more


Joined: 11 Aug 04
Location: Whitefriars sc
Online Status: Offline
Posts: 8956
Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 12 at 6:59pm
Really looking forward to seeing GRF build (or get built) a 12 foot boat down to 35kgs and still have it strong enough to land on a beach without cracking up.
Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
Back to Top
Jack Sparrow View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 08 Feb 05
Location: United Kingdom
Online Status: Offline
Posts: 2965
Post Options Post Options   Quote Jack Sparrow Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 12 at 7:08pm
Anyway G.R.F you know you should have build this like I said.



40kg ALL UP. Rig, Sails, Foils everything. PBO rigging etc... problem is it was so dam light and fast anything over F3-4 and the guy couldn't keep control of it! Nothing to do with the crew weight, just how lively it was off waves etc... the sailing equivalent to windsurfing.
Back to Top
Jack Sparrow View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 08 Feb 05
Location: United Kingdom
Online Status: Offline
Posts: 2965
Post Options Post Options   Quote Jack Sparrow Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 12 at 7:29pm
last seen here: FORUM

Back to Top
I luv Wight View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 28 Jan 05
Location: United Kingdom
Online Status: Offline
Posts: 628
Post Options Post Options   Quote I luv Wight Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 12 at 10:37pm


Relatively easy for weight, ( 32kg for the Cherub above ), but I don't think it would survive being  run up the beach.

http://www.bloodaxeboats.co.uk
Andy P
foiling Int Moth GBR3467
Freedom 21 Codling
Back to Top
JimC View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 17 May 04
Location: United Kingdom
Online Status: Offline
Posts: 6661
Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 22 May 12 at 7:42am
Originally posted by I luv Wight

but I don't think it would survive being  run up the beach.

Mmm, I wonder how you'd specify a boat for bouncing off shingle... presumably it would have to be high density foam for dent resistance, and then something seriously kick ass for the outer skin on the bottom and at least past the chines... I suppose kevlar is an obvious choice for dent resistance, but I should think you'd want a few layers of glass on top of that just to give you something you could refinish readily without too much yellow fluff. The skin would have to be so ridiculously overbuilt for the beach bouncing that you wouldn't need carbon in there for strength. Its a lot of weight, that's for sure, because you'd need to run the heavy layup way past the chines in order to stop them chewing up. Probably getting close to doubling the weight of the shell I should think...

Better just to sail somewhere with decent launching I reckon!
Back to Top
winging it View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 22 Mar 07
Online Status: Offline
Posts: 3958
Post Options Post Options   Quote winging it Quote  Post ReplyReply Direct Link To This Post Posted: 22 May 12 at 8:32am
oh, now who do I know who has a single trap kevlar hull in her back garden.  reputedfly weighs 58kg..

http://www.ebay.co.uk/itm/120889664190?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
the same, but different...

Back to Top
 Post Reply Post Reply Page  <1 102103104105106 142>

Forum Jump Forum Permissions View Drop Down

Bulletin Board Software by Web Wiz Forums® version 9.665y
Copyright ©2001-2010 Web Wiz
Change your personal settings, or read our privacy policy