myHanse.com - Hanse Yacht Owners Website myHanse.com - Hanse Yacht Owners Website myHanse.com - Hanse Yacht Owners Website myHanse.com - Hanse Yacht Owners Website

Welcome to myHanse.com the forum for Hanse Yachts owners throughout the world.

Forum Home Forum Home > Hints and Tips > 385/388
  New Posts New Posts RSS Feed - Rig Tension & Guages
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Rig Tension & Guages

 Post Reply Post Reply Page  <123>
Author
Message
Clouded Pearl View Drop Down
Captain
Captain


Joined: 20 November 2013
Location: UK
Status: Offline
Points: 214
Post Options Post Options   Thanks (0) Thanks(0)   Quote Clouded Pearl Quote  Post ReplyReply Direct Link To This Post Posted: 20 March 2015 at 22:31
We've relaunched today and I'm now checking the mast tension as I got myself a Loos guage. I've got the mast vertical athwartships so all good so far. However, I've not even got close to the 20% of breaking strain I'm aiming for and there's quite a lot of rake already. Should I tension the lower Ds a bit to straighten the mast before tensioning the cap shrouds some more? I'm worried I rake the mast too much before the Ds are tensioned.
Back to Top
Clouded Pearl View Drop Down
Captain
Captain


Joined: 20 November 2013
Location: UK
Status: Offline
Points: 214
Post Options Post Options   Thanks (0) Thanks(0)   Quote Clouded Pearl Quote  Post ReplyReply Direct Link To This Post Posted: 21 March 2015 at 19:12
All sorted. Took the caps to 22% and adjusted the Ds to pull the centre of the mast back. Interestingly, Phil from Inspiration Marine suggested 25% on the caps and then take the main halyard down to the gooseneck on the boom and tension. At the widest point away from the mast, the halyard should be about 8cm away from the mast. It took about 16% on the lower Ds to achieve this. This is apparently a good start to getting the mast bend correct. I must say, it does all seem way more tensioned than when I got the boat. Now I've just got to trial it and see.
Back to Top
Navegador View Drop Down
Lieutenant
Lieutenant


Joined: 18 March 2012
Location: The Netherlands
Status: Offline
Points: 45
Post Options Post Options   Thanks (0) Thanks(0)   Quote Navegador Quote  Post ReplyReply Direct Link To This Post Posted: 21 March 2015 at 21:13
Hi All,
at Selden site there is a usefull manual for mast trim.
trim setting of my H355 with Selden (deck stepped, two pair swept spreaders) ;
V1 shrouds @ 30%
D1 shrouds @ 15%
Navegador H355 D1-30
Back to Top
Clouded Pearl View Drop Down
Captain
Captain


Joined: 20 November 2013
Location: UK
Status: Offline
Points: 214
Post Options Post Options   Thanks (0) Thanks(0)   Quote Clouded Pearl Quote  Post ReplyReply Direct Link To This Post Posted: 22 March 2015 at 11:44
I, too, found the selden guide useful. However, everwhere I checked, 25% of breaking load was the absolute maximum. 30% seems quite a bit more and that would take some effort to apply
Back to Top
Clouded Pearl View Drop Down
Captain
Captain


Joined: 20 November 2013
Location: UK
Status: Offline
Points: 214
Post Options Post Options   Thanks (0) Thanks(0)   Quote Clouded Pearl Quote  Post ReplyReply Direct Link To This Post Posted: 11 April 2015 at 08:20
Well, what an incredible difference. I have been out sailing this week in a nice 3 to 4, occ 5 and tweaking the rig tension. I have reduced the caps to 15% and the inners to 10%. The inners probably need a minor tweak but initial observations are as follows:

1. Compared to when I bought the boat at just under 2 years old, she finally performs the same on both tacks!

2. She is noticeably faster.

3. She points better as the forestay is now more tensioned.

4. As a byproduct of 3, I can now furl very easily and do not even need a block on the jib. Last season I needed muscles like the hulk.

My only question is regarding the lower Ds. On a steady beat in 3 to 4, healing around 30% the lowers were just taught. However, when the wind increased and we hit more swell, the lower Ds did go slack intermittently in the swell. Should I tension them more?

Geoff
Back to Top
samuel View Drop Down
Admiral of the Fleet
Admiral of the Fleet


Joined: 26 December 2004
Location: United Kingdom
Status: Offline
Points: 2572
Post Options Post Options   Thanks (0) Thanks(0)   Quote samuel Quote  Post ReplyReply Direct Link To This Post Posted: 11 April 2015 at 19:43
Slackening the caps will give you a slacker forstay
i am surprised that you do not get the leeward caps sagging when powered up
15% sounds far too slack.
You also have to watch that by having caps & mids that are too slack the mast can pump in bad weather & if the mast inverts then it is good bye mast
Daydream Believer- Hanse 311- No GBR9917T- Bradwell Essex
Back to Top
Clouded Pearl View Drop Down
Captain
Captain


Joined: 20 November 2013
Location: UK
Status: Offline
Points: 214
Post Options Post Options   Thanks (0) Thanks(0)   Quote Clouded Pearl Quote  Post ReplyReply Direct Link To This Post Posted: 11 April 2015 at 22:13
Interesting. I know others are using a similar tension on the caps. The leeward caps were tensioned in a F3 to 4 on a beat but maybe wouldn't be in stronger wind. I take on board your advice however as this is also consistent with Selden's rigging guide and suggestions from Inspiration Marine. Any other thoughts from anybody?
Back to Top
Rubato View Drop Down
Admiral
Admiral
Avatar

Joined: 12 July 2006
Location: Canada
Status: Offline
Points: 1791
Post Options Post Options   Thanks (0) Thanks(0)   Quote Rubato Quote  Post ReplyReply Direct Link To This Post Posted: 13 April 2015 at 17:23
Having a leeward shroud go slightly slack intermittently with the heavier seas is not uncommon. 15% on cap shrouds does seem a bit light. For cruising, this may not be a big deal. If you're racing, you may find it a bit tough to point with the competition. However, when making a foresail the sailmaker will assume a certain amount of forestay sag and design the sail accordingly. So, since you notice a big difference from previous settings, you may now have the sail and the rig working together now.
 
One of the functions of the lower Ds is to control the amount of mast bend when backstay is not on. The harder the lower Ds, the less bend. The less bend means the main is fuller and provides more power for lighter wind. THen putting backstay on causes the top of the mast to bend aft and the middle moves forward, thus flattening the main - a heavier wind setting. Bottom line, you may want more lower D tension for lighter wind....


Edited by Rubato - 13 April 2015 at 17:24
Steve

Hanse 400e, #168
Back to Top
Clouded Pearl View Drop Down
Captain
Captain


Joined: 20 November 2013
Location: UK
Status: Offline
Points: 214
Post Options Post Options   Thanks (0) Thanks(0)   Quote Clouded Pearl Quote  Post ReplyReply Direct Link To This Post Posted: 13 April 2015 at 22:34
Thanks. I played about with the backstay as the wind increased and I must say, it was noticeable how much better the rig felt and the boat handled. I am going to recheck the cap tensions, tweak them up to 19 to 20 and increase the Ds and see how we go. Overall however, having the lowers about 5% less than the caps seemed to give a mast bend similar to that recommended by Phil at Inspiration Marine and which also feels right. I'll post my findings.
Back to Top
Mark&Catherine View Drop Down
Admiral
Admiral
Avatar

Joined: 18 January 2013
Location: Turkey
Status: Offline
Points: 1194
Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark&Catherine Quote  Post ReplyReply Direct Link To This Post Posted: 14 April 2015 at 07:23
I have increased my CAPS again to 20 when we changed from going South to going North in the Red Sea in prevailing wind of Northerlies and 20 Knots average.  Even with this I get a significant forestay sag.  Im using the FCL self tacker at the moment as we are cruising.  

Does anyone have a view on how much sag you should get in say 15 knots close hauled, and how you would go about checking it.  Im inclined to tighten my forestay a little unless someone can come up with a method of checking.

Mark
385 ubulukutu sail number GBR 3350L in Turkey and Greece with Mark and Catherine
Back to Top
 Post Reply Post Reply Page  <123>
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.063 seconds.

Links : www.hanseyachts.co.uk www.hanseyachts.com www.fjordboats.co.uk www.dehler.co.uk www.varianta.co.uk