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

V Twin
 Post Reply Post Reply Page  <1 56789 142>
Author
  Share Topic Share Topic  Topic Search Topic Search  Topic Options Topic Options
Xpletive View Drop Down
Far too distracted from work
Far too distracted from work


Joined: 28 Jan 06
Online Status: Offline
Posts: 320 		Post Options Post Options   Quote Xpletive Quote  Post ReplyReply Direct Link To This Post Topic: V Twin
    Posted: 20 Jan 11 at 8:49pm
Good to see testing is progressing OK
 
 
 
Back to Top
Guests View Drop Down
Guest Group
Guest Group
Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jan 11 at 8:51pm
Bugger, just lost an essay!
 
I think its great you're putting your money where you're mouth is - and very funny to see how fast you are back tracking on how easy it is to knock out a good boat in a couple of weeks! LOL
 
In my opinion that design will be heavy and hard to manoeuvre.  The key thing is whether the extra sail area that the very stable hull allows will compensate for the very high drag of the hull form.  Personally I doubt it, but I hope you prove me wrong! 
 
The WSA is about twice that of a Laser.  That will be very hard to design out as it is inherent in the geometry of the hull, but possibly with some trim and heel it can be reduced.  Luckily, it can carry twice as much sail as a Laser, but that too comes with downsides in terms of cost, weight and handling.


Edited by Peaky - 20 Jan 11 at 8:52pm
Back to Top
WoodenBoatLuvver View Drop Down
Groupie
Groupie
Avatar

Joined: 20 Dec 10
Online Status: Offline
Posts: 40 		Post Options Post Options   Quote WoodenBoatLuvver Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jan 11 at 9:17pm
Originally posted by jwlbrace

Originally posted by G.R.F.

[QUOTE=WoodenBoatLuvver] .

Hey WBL, no need to travel so far for this sort of community; take a bus across the QE2 bridge and you're there... a friendly place where simple folk and the inbred can exist in incestuous union without the stigma and odd looks from normal bods.... colloquially we can this place "Kent", I understand the capital for the weirdest kentish folk is known as Thanet.    
bus, do they not still have a stagecoach link, or maybe they havent quite mastered the use of safety matches and set fire to them all...being wood.
Anyway next time I chance a visit to those parts, it will be via Swanley to Brands, on my own(fast VTwin-m'bike). That way one can make a swift departure after.
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: 20 Jan 11 at 10:12pm
Originally posted by JimC

.....
The major challenges to making this concept work are going to include wave impact and wetted area, and I'm sure the folks working on this don't need me to tell them that. Are they insuperable problems? Well, you're only going to find out with some serious work...


I would think gybing the kite single handed at the same time as changing over the toed-in centreboards will be a tad challenging too...

It looks to me that f you took away all the bits that are not helping, you'd be left with a catamaran.
Historically tunnel hulls are mostly about trying to operate as a cat within monohull class rules aren't they? (excluding serious power boats)

That leaves the question of 'why don't we all want cats?'

I admire the open-minded thinking, but I think I've lost sight of the problem it is trying to solve!
Or maybe it's just not the problem I hoped might be solved- cheap 'RS700 killer' that can be short tacked up a shallow channel by a codger of limited talent.

BTW, what are Vortexes (Vortices?) like in lumpy water? Can't recall seeing one on the coast...
Back to Top
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 Posted: 20 Jan 11 at 10:29pm
Originally posted by RS400atC

 

I admire the open-minded thinking, but I think I've lost sight of the problem it is trying to solve!
Or maybe it's just not the problem I hoped might be solved- cheap 'RS700 killer' that can be short tacked up a shallow channel by a codger of limited talent.

BTW, what are Vortexes (Vortices?) like in lumpy water? Can't recall seeing one on the coast...

Well it is the Rs700/MPS I've got my eye on, wether it can be done sat down and cheap,  I doubt and short tacking up a shallow channel wasn't in my cross hairs, my issues are short steep 'orrible waves, a viscious shore dump and no desire to spend time practising.

Your comments so far have been to do with actually the wrong set of drawings that bear the title of this thread, you'll have to go back to the beginning of it and read the relevant bits.

Vortexes, like all Cats are likely to dip a lee bow in our water, with the resultant over the handlebars, something I have a distinct aversion to, hence the monobow.
https://www.ease-distribution.com/
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: 20 Jan 11 at 10:58pm
Is it me, or does the design look a lot like some jet ski hulls?

sorry to use bad language...I couldn't find a better way to express myself.
the same, but different...

Back to Top
timeintheboat View Drop Down
Really should get out more
Really should get out more


Joined: 01 Feb 07
Location: United Kingdom
Online Status: Offline
Posts: 615 		Post Options Post Options   Quote timeintheboat Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 11 at 8:23am
Is it going to be wider than a wide dinghy like a Merlin or N12, does that mean two berths not one?
Like some other things - sailing is more enjoyable when you do it with someone else
Back to Top
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 Posted: 21 Jan 11 at 8:32am
It's worked out about 2m wide, the split in .67 mtr bits, the hulls at the rear are .67 so is the gap in the middle so by the time it's splayed a bit it was  2.01 then with the racks either side it should be about 2.60.

I think Dan's narrowing it down a bit to reduce the wetted surface.

Yes , I guess there will be enough room for two but that's not the intention, the extra width is to make up for light folk not having the leverage and to ensure it stays upright with a large amount of canvas.

I suppose it could be made modular to suit one or two, now there's a thought, one concept you just decide what you want it to be. Single handed hiker, Trapeze, or Twin. It's conceivable I guess.

If the darn thing works of course.
https://www.ease-distribution.com/
Back to Top
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 Posted: 21 Jan 11 at 8:34am
Originally posted by winging it

Is it me.

It's just you, is that a plate I can see in the sink that needs washing?
https://www.ease-distribution.com/
Back to Top
Guests View Drop Down
Guest Group
Guest Group
Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jan 11 at 9:01am
Graham,
 
I can't for the life of me remember if you dislike the "High Performance Sailing" book by Frank Bethwaite or not.
However, I dug it out last night and read the chapter on "HULLS" with your project in mind and there was a lot of stuff in there about waves and the drag of a hull etc.
I really think it would be worth a read.
Cheers
Timg
 
Back to Top
 Post Reply Post Reply Page  <1 56789 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