Drilling into mast & boom - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 


Like Tree4Likes
Reply
 
LinkBack Thread Tools
  #1  
Old 01-27-2013
Jim Sanders
 
Join Date: Sep 2011
Location: London Ontario
Posts: 29
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Jimmy E is on a distinguished road
Drilling into mast & boom

Picked up new traveller and solid vang.
I'm am very comfortable with installing new traveller- filling old holes, drilling new, backer plates and so on.
I need to find a resource or two regarding the instal of my solid boom vang. I'm uneasy drilling into the mast without a solid plan. Any advice on procedure or steps would be appreciated. I wouldn't take issue with even the most rudimentary advice.
I have been told that I should install the vang with a rate of 80% compressed , with the boom at a right angle to the mast....ideas?

Cheers,
Jimmy
Reply With Quote Share with Facebook
  #2  
Old 01-27-2013
US27inKS's Avatar
Midwest Puddle Pirate
 
Join Date: Feb 2005
Location: Gardner, KS
Posts: 2,160
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 11
US27inKS has a spectacular aura about US27inKS has a spectacular aura about
Re: Drilling into mast & boom

I would talk to the vang manufacturer.
SloopJonB likes this.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
John USYacht 27 "Cora Lee"
Reply With Quote Share with Facebook
  #3  
Old 01-27-2013
Senior Member
 
Join Date: Aug 2006
Location: Norway
Posts: 675
Thanks: 5
Thanked 48 Times in 44 Posts
Rep Power: 9
knuterikt is on a distinguished road
Re: Drilling into mast & boom

Quote:
Originally Posted by Jimmy E View Post
Picked up new traveller and solid vang.
I'm am very comfortable with installing new traveller- filling old holes, drilling new, backer plates and so on.
I need to find a resource or two regarding the instal of my solid boom vang. I'm uneasy drilling into the mast without a solid plan. Any advice on procedure or steps would be appreciated. I wouldn't take issue with even the most rudimentary advice.
Read all the instructions
Measure twice - at least

If you work alone use tape or lashings to keep the bracket in place while fitting.

Drill the first hole (at one corner) if you are going to uses screws tap the first hole and fix the bracket in place (if you use rivets just insert a rivet (w/o poping it) in the hole to get the bracket aligned)
Make sure the bracket is aligned.
Make the next hole diagonally at the opposite corner, tap and screw .

If you are using rivets I would fix it in the two corners before proceeding with the rest of the holes.

Drill the remaining holes, tap the remaining holes.
Use a compound (Duralac/teffgel) to isolate dissimilar metals when you do the final mounting.

Quote:
Originally Posted by Jimmy E View Post
I have been told that I should install the vang with a rate of 80% compressed , with the boom at a right angle to the mast
That seem to be a bad advice...it depends of the cut on your sail.

From this http://selden.se/_download.cfm?id=66...95-854-SET.pdf
Quote:
Hoist the mainsail, and sheet home hard whilst ensuring
that the Rodkicker does not ”bottom”.
Leave a little extra play when the boom is at its lowest position.
Faster likes this.
Reply With Quote Share with Facebook
  #4  
Old 01-27-2013
Senior Member
 
Join Date: Feb 2012
Location: New Orleans Louisiana
Posts: 1,917
Thanks: 6
Thanked 42 Times in 40 Posts
Rep Power: 3
Stumble is on a distinguished road
Re: Drilling into mast & boom

No real thoughts on the boomvang except to follow the manufacturers recomendations, and call them for advice if you have any questions. No one on here has close to the experience they do installing them.

As for the traveler... If you didn't buy a variable space traveler. Take the track you have back, and replace it with one. See Harken Small Boat High-Beam Slide Bolt Track - 1.2 m at Mauri Pro Sailing Store they eliminate all the drilling, filling, cursing, and fighting to install new traveler track.
__________________
Greg Rubin
Attorney
Reply With Quote Share with Facebook
  #5  
Old 01-27-2013
Faster's Avatar
Just another Moderator
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 14,627
Thanks: 68
Thanked 187 Times in 179 Posts
Rep Power: 10
Faster has a spectacular aura about Faster has a spectacular aura about Faster has a spectacular aura about
Re: Drilling into mast & boom

As an alternate to pop rivets you might want to investigate rivnuts.

Rivnut Blind Fasteners Internal Thread Tubular Rivets
BELLATRIX1965 and oysterman23 like this.
__________________
Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Reply With Quote Share with Facebook
  #6  
Old 01-27-2013
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 2,198
Thanks: 2
Thanked 35 Times in 35 Posts
Rep Power: 4
MarkSF is on a distinguished road
Re: Drilling into mast & boom

Quote:
Originally Posted by Jimmy E View Post
Picked up new traveller and solid vang.
I'm am very comfortable with installing new traveller- filling old holes, drilling new, backer plates and so on.
I need to find a resource or two regarding the instal of my solid boom vang. I'm uneasy drilling into the mast without a solid plan. Any advice on procedure or steps would be appreciated. I wouldn't take issue with even the most rudimentary advice.
I have been told that I should install the vang with a rate of 80% compressed , with the boom at a right angle to the mast....ideas?

Cheers,
Jimmy
I installed a Garhauer solid vang a couple of years ago, and it has stood up well to abuse in "the slot". Here is the procedure I used :

There are two goals you are trying to meet :

1) That, with the main sheet in hard, it never ends up fully compressed, as this could snap the boom.

2) Fully extended, you get plenty of lift on the boom so you can see nicely for motoring and reefing is easy (easy to tighten the reefing outhaul)

Set the vang to about 90% compression. Hoist the main, and sheet the main in as hard as you can. It should be flat as a blade. Then offer the vang up and see how it fits. You are aiming for less than 45% angle, vang to boom, so that it will be operating at more like 45% under normal use. In my case, this meant mounting the vang to the mast as low as possible.

Mount the vang to the mast first, then repeat the step above with sheeting the main in hard with the vang at 90% compression. Mark the boom, then you can drill and mount with the main dropped again.

What you can do to leave yourself some adjustment, is only drill the middle pair of the sets of 6 holes. Then if you don't like the fit, you can move back and forth (or up and down) by one set.

I used these 1/4" rivets from McMasterCarr :

McMaster-Carr

Stainless steel, domed, high strength, 2750lb sheer strength EACH. That means you could lift the boat by my vang.

You need a serious riveter for these things.

Here's the thing in use :



Finally, I've found it tremendously useful to have the vang sheet brought back to the cockpit. Now it's possible to adjust it easily, we adjust it a lot.
__________________
1984 Bristol 31.1
Alameda, California, USA

Last edited by MarkSF; 01-27-2013 at 09:43 PM.
Reply With Quote Share with Facebook
  #7  
Old 01-27-2013
Faster's Avatar
Just another Moderator
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 14,627
Thanks: 68
Thanked 187 Times in 179 Posts
Rep Power: 10
Faster has a spectacular aura about Faster has a spectacular aura about Faster has a spectacular aura about
Re: Drilling into mast & boom

Quote:
Originally Posted by MarkSF View Post



.
Beautiful brightwork, Mark!
__________________
Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Reply With Quote Share with Facebook
  #8  
Old 01-27-2013
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 2,198
Thanks: 2
Thanked 35 Times in 35 Posts
Rep Power: 4
MarkSF is on a distinguished road
Re: Drilling into mast & boom

Thank you! Makes all the endless toil worthwhile!
__________________
1984 Bristol 31.1
Alameda, California, USA
Reply With Quote Share with Facebook
  #9  
Old 01-27-2013
Jim Sanders
 
Join Date: Sep 2011
Location: London Ontario
Posts: 29
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Jimmy E is on a distinguished road
Re: Drilling into mast & boom

Mark,
Very helpful! My new vang is also from Garhauer. By the looks of it, the exact same model. I'm curious as to the use of the teak dowel on the upper block.....is this the built in weak spot, sparing failure of other parts?

Cheers,
Jimmy
Reply With Quote Share with Facebook
  #10  
Old 01-27-2013
Senior Member
 
Join Date: Feb 2011
Location: San Francisco Bay area
Posts: 2,198
Thanks: 2
Thanked 35 Times in 35 Posts
Rep Power: 4
MarkSF is on a distinguished road
Re: Drilling into mast & boom

I hadn't ever noticed a teak dowel! I'll check it out next time I'm on the boat.
__________________
1984 Bristol 31.1
Alameda, California, USA
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mast & boom MSO sailor General Discussion (sailing related) 8 01-18-2013 06:31 AM
C&C 32 boom and mast cec513 Gear & Maintenance 3 01-13-2013 11:31 PM
Mast Drilling Stillraining Gear & Maintenance 55 10-15-2010 10:43 AM
mast vs boom jnanjorl Gear & Maintenance 13 05-25-2010 04:51 PM
Drilling in Mast johnferrell Gear & Maintenance 8 03-20-2009 05:44 PM


All times are GMT -4. The time now is 10:24 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.