Laser 140101 Tynemouth |
![]() |
Laser 161752 Tynemouth |
![]() |
Laser 28 - Excellent example of this great design Hamble le rice |
![]() |
List classes of boat for sale |
Laser mast chock? |
Post Reply ![]() |
Author | |
Riv ![]() Far too distracted from work ![]() Joined: 23 Nov 13 Location: South Devon Online Status: Offline Posts: 353 |
![]() ![]() ![]() ![]() Posted: 21 Oct 14 at 4:29pm |
I'm off my board now as the winter is comming on and back on the ancient Laser with its standard rig.
Just for fun (not racing)and because I like making things, have a large block of Nylon and a band saw, does anyone think that the boat will go better if I chock the mast forwards, so reducing some of the weather helm and making it a little easier to get under the boom? I measured mine up, it has 13.5mm of fore and aft play and a much newer one has about 11.5mm of play, doing the sums this translates into aprox 220 to 190mm of movement at the mast head. Assuming I loose a quarter of this in slop this gives about 142mm to 165mm or about 5.5" to 6.5" forward at the top. What do you think? |
|
![]() |
|
JimC ![]() Really should get out more ![]() ![]() Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6662 |
![]() ![]() ![]() ![]() |
Betcha it makes no difference to the "weather helm" at all! Old school leadmine sailors get very fixated on mast position and weather helm, but most dinghies share the sideload between cb and rudder and large differences in rake make very little difference... What most people think of as weather helm is mainly caused by heel.
|
|
![]() |
|
Old Timer ![]() Far too distracted from work ![]() Joined: 05 Jun 13 Online Status: Offline Posts: 370 |
![]() ![]() ![]() ![]() |
Folk law states that in the early days hatches were installed to "repair" the mast foot leading to exactly what you are doing to gain more leech tension upwind ...
|
|
![]() |
|
Rupert ![]() Really should get out more ![]() Joined: 11 Aug 04 Location: Whitefriars sc Online Status: Offline Posts: 8956 |
![]() ![]() ![]() ![]() |
Yup, you could really, really bend the mast, then snap it. Even quicker than normal!
|
|
Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686
|
|
![]() |
|
Riv ![]() Far too distracted from work ![]() Joined: 23 Nov 13 Location: South Devon Online Status: Offline Posts: 353 |
![]() ![]() ![]() ![]() |
Never snapped any part of my Laser.....I could just sheet it in a littles less tight.
So the general concensus is hike harder...... |
|
![]() |
|
craiggo ![]() Really should get out more ![]() ![]() Joined: 01 Apr 04 Location: United Kingdom Online Status: Offline Posts: 1810 |
![]() ![]() ![]() ![]() |
Dont necessarily need to hike harder, just sail the boat flat!
|
|
![]() |
|
Chris 249 ![]() Really should get out more ![]() ![]() Joined: 10 May 04 Online Status: Offline Posts: 2041 |
![]() ![]() ![]() ![]() |
My old Laser (52XXX) suffered a mast-tube failure and when I was repairing it, I ended up with the mast ab out (IIRC) 75mm-100mm too far forward at the tip. In the first championship race I sailed it in that configuration, I scored more points that I had counted in all of the two previous championships I had sailed! ![]() I did hack away at the mast base to get the rake back closer to normal and the upwind speed improved again, but the boat had had it's day as a racer; it's now giving Sea Scouts a lot of fun. The Laser's weather helm is designed in because the Bruces feel that it's faster. I don't think the boat really has massive weather helm - it's just that Bruce Kirby liked an old-style heavily-raked rudder. Ian Bruce actually reduced the rudder rake but it's still much more raked than most modern boats. To reduce the heavy feel of the rudder, just drill an new hole for the rudder pin to allow the rudder to sit more upright. I've sailed mine with a broken rudder pin and it felt good! I do wish the class would allow us to sit the rudder more upright.
Edited by Chris 249 - 21 Oct 14 at 11:39pm |
|
![]() |
|
Riv ![]() Far too distracted from work ![]() Joined: 23 Nov 13 Location: South Devon Online Status: Offline Posts: 353 |
![]() ![]() ![]() ![]() |
Thanks Chris, really useful information.
|
|
![]() |
Post Reply ![]() |
Forum Jump | Forum Permissions ![]() You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |