New Posts New Posts RSS Feed: Laser 13 rig settings
  FAQ FAQ  Forum Search   Register Register  Login Login

Laser 13 rig settings

 Post Reply Post Reply Page  123>
Author
Sam.Spoons View Drop Down
Really should get out more
Really should get out more


Joined: 07 Mar 12
Location: Manchester UK
Online Status: Offline
Posts: 3398
Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Topic: Laser 13 rig settings
    Posted: 08 Apr 22 at 6:06pm
A mate has a L13 and, as he has just had the misfortune to break his mast, (replacement will be claimed for) I though it would be worth getting some settings so that when we rig the new mast it'll be in the right place. Can anybody help with rake and tension numbers please? It's not for serious racing but we just want the boat to be as manageable as possible over a range of wind strengths..

Edited by Sam.Spoons - 08 Apr 22 at 6:08pm
Spice 346 "Flat Broke"
Blaze 671 "supersonic soap dish"
Back to Top
The Moo View Drop Down
Really should get out more
Really should get out more
Avatar

Joined: 01 Jun 06
Online Status: Offline
Posts: 807
Post Options Post Options   Quote The Moo Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 22 at 8:32pm
Originally posted by Sam.Spoons


A mate has a L13 and, as he has just had the misfortune to break his mast, (replacement will be claimed for) I though it would be worth getting some settings so that when we rig the new mast it'll be in the right place. Can anybody help with rake and tension numbers please? It's not for serious racing but we just want the boat to be as manageable as possible over a range of wind strengths..


Just interested. Under what conditions did the mast break? I always thought the L13 and its kit was pretty robust.
Back to Top
Sam.Spoons View Drop Down
Really should get out more
Really should get out more


Joined: 07 Mar 12
Location: Manchester UK
Online Status: Offline
Posts: 3398
Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 22 at 8:54pm
Forestay failure parked up plus gale force winds. The mast foot was bolted to the step and it's torn the rivet holes out of the tube. Probably fixable if we cut an inch off but if the insurance will pay...

That said it's just a standard section and they do break, though I reckon the hull will be around for the cockroaches to sail after the apocalypse  LOL


Edited by Sam.Spoons - 08 Apr 22 at 8:56pm
Spice 346 "Flat Broke"
Blaze 671 "supersonic soap dish"
Back to Top
Grumpycat View Drop Down
Far too distracted from work
Far too distracted from work


Joined: 29 Sep 20
Online Status: Offline
Posts: 497
Post Options Post Options   Quote Grumpycat Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 22 at 10:44pm
Its possible to get a new Laser 13 mast .?

Wonders will never end  LOL


Edited by Grumpycat - 08 Apr 22 at 11:06pm
Back to Top
Oinks View Drop Down
Far too distracted from work
Far too distracted from work


Joined: 24 Oct 14
Location: Bandol
Online Status: Offline
Posts: 267
Post Options Post Options   Quote Oinks Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 22 at 11:50pm
I know nothing about Laser 13s. But as a rough guide in the absence of anything else for starters..

Big main, small jib

...mast step..mid setting
...put the mast up
...hoist jib
....pull rig tension to abt 350 lbs
...mast rake...tiny jib big main so it probs need to be  a little bit aft of upright
....spreaders....so that shrouds are maybe prodded slightly aft of in line, but make sure squared across the boat

And make sure the mast is properly upright and not bending off to one side.

Hope thats helpful!




Back to Top
Sam.Spoons View Drop Down
Really should get out more
Really should get out more


Joined: 07 Mar 12
Location: Manchester UK
Online Status: Offline
Posts: 3398
Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 10 Apr 22 at 10:05am
Thanks gents, It's mostly how much rake will give the best balance. I'll go and sail it with him and experiment a bit.

I can't see a problem with getting a new mast unless it's an obsolete section, it's un-tapered I think and it'll almost certainly be a common stock section. But I reckon it's an easy fix if not.


Edited by Sam.Spoons - 10 Apr 22 at 10:07am
Spice 346 "Flat Broke"
Blaze 671 "supersonic soap dish"
Back to Top
Oatsandbeans View Drop Down
Far too distracted from work
Far too distracted from work


Joined: 19 Sep 05
Location: United Kingdom
Online Status: Offline
Posts: 382
Post Options Post Options   Quote Oatsandbeans Quote  Post ReplyReply Direct Link To This Post Posted: 10 Apr 22 at 11:46am
I don’t think that rake and or mast foot position affect the balance of the helm directly, but they do affect mast bend which has a big affect on helm balance. Normally setting it up so there is some 1 to 2” of prebend is a good start. If you get over bend creases at that straighten it up a tad.
Back to Top
Sam.Spoons View Drop Down
Really should get out more
Really should get out more


Joined: 07 Mar 12
Location: Manchester UK
Online Status: Offline
Posts: 3398
Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 10 Apr 22 at 5:59pm
I'm a windsurfer and our primary means of steering is mast rake  Big smile but the range of movement is rather more than mast rake in a dinghy. But rake must affect the helm balance?
Spice 346 "Flat Broke"
Blaze 671 "supersonic soap dish"
Back to Top
423zero View Drop Down
Really should get out more
Really should get out more


Joined: 08 Jan 15
Location: United Kingdom
Online Status: Offline
Posts: 3401
Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 10 Apr 22 at 6:15pm
While it won't be as exaggerated as a windsurfer, it does make a difference, I prefer a bit of weather helm.
Robert
Back to Top
Oatsandbeans View Drop Down
Far too distracted from work
Far too distracted from work


Joined: 19 Sep 05
Location: United Kingdom
Online Status: Offline
Posts: 382
Post Options Post Options   Quote Oatsandbeans Quote  Post ReplyReply Direct Link To This Post Posted: 10 Apr 22 at 6:17pm
Mast rake in a dinghy is complex, but the thing it doesn’t really do is change much the position of the CoE of the rig surprisingly. It does change the geometry of the spreaders and how the mast bends.This is why raking the rig will depower the rig by reducing the camber in the main which will thus reduce weather helm. ( the opposite way to what you would think)
Boards are different as the mast foot can be moved a lot and the centre of lateral resistance changes massively as you go from using a centreboard fully down to raked and then onto fully retracted and using the fin 100% .With a board the one thing that is constant throughout all of this is the rig that is unaffected by all these changes.But with both boards and dinghies the aim is the same , in a breeze to balance the rig and foil forces and to minimise drag from both.
Back to Top
 Post Reply Post Reply Page  123>

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