SailNet Community - Reply to Topic

   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 > Bulkhead Mod and Compression Post
 Not a Member? 


Thread: Bulkhead Mod and Compression Post Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
01-05-2012 09:48 PM
SlowButSteady Email, or PM WDSchock, he's on sailnet.
01-05-2012 08:29 PM
Rockter Damn it guys, be careful about taking a compression post out.
It is not just a question of the size of the boat.
The compressive forces there are terrible if the wind rises.
It looks a bit of a nuisance, but I certainly wouldn't take it out of there.... those chainplates look like they wouldn't take any prisoners.
01-05-2012 08:21 PM
MarkSF
Quote:
Originally Posted by br3nt View Post
Thanks SloopJonB. Yes I agree it looks like overkill but it has been recommended as a solution for weak mast support reported in the early runs of the S22. SCHOCK actually changed the design on later S22's to address this and apparently completely did away with any compression post requirements.

I'm about to drop the mast for some other work so I'll take a closer work and try the steps you suggested.

Thanks again for the feedback.
In answer to your original question, I would say yes you can, as the mast was the main force on the deck, and that force is now transferred to the step via the new jack post. So all the deck now has to do is support it's own weight (and yours!)

Is there a Santana 22 forum who can provide more info?
01-05-2012 07:44 PM
br3nt Thanks SloopJonB. Yes I agree it looks like overkill but it has been recommended as a solution for weak mast support reported in the early runs of the S22. SCHOCK actually changed the design on later S22's to address this and apparently completely did away with any compression post requirements.

I'm about to drop the mast for some other work so I'll take a closer work and try the steps you suggested.

Thanks again for the feedback.
01-03-2012 03:39 AM
SloopJonB
Quote:
Originally Posted by br3nt View Post
We have a relatively new-to-us 1969 Santana 22. The early model Santana 22's have a habit of needing additional mast support and this boat has a large metal post installed in opening of the bulkhead. While not looking to go out for a week or so we'd like to have some access to the v-berth (and the port-a-pottie in an emergency). With the added metal compression post we can barely squeeze in the v-berth to stow the sails. I've attached a pic where it looks like the bulkhead was modified (which is now the standard design) as well as a pic of our bulkhead and compression post. With the post in place, can I cut back the bulkhead to provide access to the v-berth without worrying about the deck or anything else being supported sufficiently? Thanks Brent

Modified...
S22ModifiedBulkhead

Our bulkhead...
S22wCompPost
If that compression post is needed on a 22' boat that has full height main bulkheads that close together, you have something else going on.

That thing looks like such overkill for a boat that size that I'd be suspicious the previous owner was paranoid and/or had read things about big boats needing compression posts. I wouldn't cut away any of the bulkheads - find another solution (if one is even necessary).

The first thing I'd do is take the tension off it, pull it out and see what happened. If the deck sags, you probably have wet core. If nothing obvious happens, check the rigging to see that tension has been maintained. If the rig is still tight, go for a sail on a light day and see if there is any flexing or oil-canning of the deck. Continue searching things out in this way.

If nothing seems to happen, I'd just leave it out. A 22' boat doesn't exert huge forces on the rig so a post like that should never be necessary. Most of the 22' boats I've been on didn't even have bulkheads like yours - many don't have ANY main bulkhead, just some cabinetry bonded in to stiffen the hull.

Also, you could PM W.D. SCHOCK - he built them and is a member here - see what he has to say.
01-03-2012 02:18 AM
br3nt
Bulkhead Mod and Compression Post

We have a relatively new-to-us 1969 Santana 22. The early model Santana 22's have a habit of needing additional mast support and this boat has a large metal post installed in opening of the bulkhead. While not looking to go out for a week or so we'd like to have some access to the v-berth (and the port-a-pottie in an emergency). With the added metal compression post we can barely squeeze in the v-berth to stow the sails. I've attached a pic where it looks like the bulkhead was modified (which is now the standard design) as well as a pic of our bulkhead and compression post. With the post in place, can I cut back the bulkhead to provide access to the v-berth without worrying about the deck or anything else being supported sufficiently?

Thanks!
Brent

Modified...
S22ModifiedBulkhead

Our bulkhead...
S22wCompPost

 
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


All times are GMT -4. The time now is 04:01 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.