New Posts New Posts RSS Feed: Farr 3.7
  FAQ FAQ  Forum Search   Register Register  Login Login

Farr 3.7
 Post Reply Post Reply Page  <1 1011121314 112>
Author
  Share Topic Share Topic  Topic Search Topic Search  Topic Options Topic Options
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: Farr 3.7
    Posted: 14 Jul 11 at 10:13am
Originally posted by Triple Three




I'm a little curious about this V-Twin you are building, mainly because I fiddle around a little with yacht design in my free time...

If sailed flat, will the hull shape not create turbulance where it hollows out?  Right where the centerboard is located?  This would be fine when on the plane with the bow up, but upwind would increase drag and cause the c/b to stall?

You have countered this by saying it will sail heeled over upwind.  Yet there is little freeboard, so will you not have issues with the racks dragging and the width causing the c/b to lift out?
Yep all possible, without wishing to highjack this Farr 3.7 thread, which is very true in that it could have saved me a lot of time and money, but then I'd never have found out. I still don't actually know anything for sure, but that is part of the kick, finding out. Some times you just have to ante up and go with a hunch, the centreboard thing is the imponderable, everyone says go for two, but then they become daggerboards and we're back to why the Vortex wouldn't work for me.
Anyway with any luck end of next week we'll know, the wing wang device we've been working on took more time than expected and we've had to fit it out to possibly end up being a double hander because it's turned out so huge. I'm hoping for some more pics in the next couple of days.
https://www.ease-distribution.com/
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: 24 Jul 11 at 10:49am
Click this: for a short video of me sailing the 3.7. The wind was 'Light and Patchy' and didn't live up to the forecast, anyway have a look.
Farr 3.7 Class Website
Farr 3.7 Building - Facebook Group
Back to Top
O'pen BIC UK View Drop Down
Newbie
Newbie


Joined: 20 Apr 11
Online Status: Offline
Posts: 4 		Post Options Post Options   Quote O'pen BIC UK Quote  Post ReplyReply Direct Link To This Post Posted: 24 Jul 11 at 3:54pm
Nice. Like to see these boats getting a new lease of life over here. Been following the thread about import, building etc.

I know when I was sailing these in NZ there was a jig available from someone (possibly the class association if the memory is right).
Maybe you could look to bring a jig over for those who want grp instead of ply construction.

Thanks for the vid.
Check out the O'pen BIC Website
www.openbic.co.uk

Modern boats for modern kids.
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: 24 Jul 11 at 6:29pm
Did you work for 'Howdens' then? I reckon it would be a lot cheaper to make the mould over here than import it though. Especially a female mould, as my boat could be used or the Auto Cad files that I have been given could be used to quickly laser cut some ply for a plug to make the mould from. Glad you like the blog.
Farr 3.7 Class Website
Farr 3.7 Building - Facebook Group
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: 25 Jul 11 at 8:14am
Originally posted by Jack Sparrow

Click this: for a short video of me sailing the 3.7. The wind was 'Light and Patchy' and didn't live up to the forecast, anyway have a look.


BUMP
Farr 3.7 Class Website
Farr 3.7 Building - Facebook Group
Back to Top
Triple Three View Drop Down
Newbie
Newbie


Joined: 18 May 11
Location: Auckland, NZ
Online Status: Offline
Posts: 6 		Post Options Post Options   Quote Triple Three Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jul 11 at 5:55am
Good to see you've got it on the water.

I just read in your blog about the towball size issues and that you were considering a flat bed trailer...  I must say you got a really nice trailer with the boat, worth several thousand NZ$ by itself.

The solution I would suggest is to replace the tow ball clamp on the trailer for a 50mm one that will fit your standard tow ball.  It might be bolted or welded on, but either way it would be an easy fix.  I don't know if the part is available in the UK but it most definitely is here.

http://www.trojan.co.nz/index.asp?PageID=2145833596


Edited by Triple Three - 27 Jul 11 at 6:01am
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: 27 Jul 11 at 8:31am
Thanks Triple Three, yes I'm in the process of getting the tow clamp changed for a 50mm. There is a guy at our club that runs a trailer business that will tasked with the alteration.

And yep, that box trailer is fantastic.

On a side point. Is your boat ply or composite? If composite, if you have any build pictures I'd love to see them. It would be helpful for planning composite builds over here.
Farr 3.7 Class Website
Farr 3.7 Building - Facebook Group
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: 27 Jul 11 at 3:24pm
FARR 3.7 FORSALE! link
Farr 3.7 Class Website
Farr 3.7 Building - Facebook Group
Back to Top
Neptune View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 08 Jun 09
Location: Berkshire United Kingdom
Online Status: Offline
Posts: 1314 		Post Options Post Options   Quote Neptune Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jul 11 at 3:55pm
It just struck me looking at that how similar the boat looks to a Solution. Sorry.
Musto Skiff and Solo sailor
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: 6662 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jul 11 at 4:28pm
It would have been a sensible design for the Solution designer to "use as an inspiration", but I'd be quite suprised if a UK designer had that much vision.
Back to Top
 Post Reply Post Reply Page  <1 1011121314 112>

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