Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 09-03-2016, 15:27   #16
Registered User

Join Date: May 2010
Posts: 666
Re: on the hard .. a bad thing?

I reckon having the entire boat weight loading the keel might also lead to distortion albeit small and probably over a larger and so less noticeable area. Cradle pads should line up with bulkheads and so have force distributed over a larger area. The aim should be to distribute load over as many points and as large an area as possible. Some builders put pointers on the hull to indicate loading areas. The keel might be one of several load points and all of them should be equally loaded or thereabouts. So a couple of tonnes per load point. Of course the keel might take a little more mostly because there's reinforcement along the centre of the hull.
__________________

__________________
dlymn is offline   Reply With Quote
Old 09-03-2016, 15:30   #17
Registered User
 
ensembull's Avatar

Join Date: Mar 2014
Location: Pickering, Ontario
Boat: C&C 25
Posts: 15
Re: on the hard .. a bad thing?

Quote:
Originally Posted by Dockhead View Post
I think the only benefit to keeping a boat out of the water -- out of her element! -- is less fouling.

It used to be, that in earlier stages of GRP technology when osmosis was a problem, it was considered useful to let the hull dry out. That does not seem to be the case for more modern boats.

On the hard, the boat is subject to much greater thermal stress (especially, freezing, which it can't do in the water), and none of the systems can be exercised.


Very many systems which are left idle on the hard, never being used, will fail prematurely.

So as always, no less than for boats which have been in the water, caveat emptor.
If I could leave the boat in the water I would. The harbour in Whitby, Ontario, Canada freezes solid and the ice moves. Pretty sure it would grind the boat to a pulp by spring. Just saying
__________________

__________________
ensembull is offline   Reply With Quote
Old 09-03-2016, 15:33   #18
Moderator
 
Dockhead's Avatar

Cruisers Forum Supporter

Join Date: Mar 2009
Location: Cowes (Winter), Baltic (Summer) (the boat!); somewhere in the air (me!)
Boat: Cutter-Rigged Moody 54
Posts: 19,725
Re: on the hard .. a bad thing?

Quote:
Originally Posted by dlymn View Post
I reckon having the entire boat weight loading the keel might also lead to distortion albeit small and probably over a larger and so less noticeable area. Cradle pads should line up with bulkheads and so have force distributed over a larger area. The aim should be to distribute load over as many points and as large an area as possible. Some builders put pointers on the hull to indicate loading areas. The keel might be one of several load points and all of them should be equally loaded or thereabouts. So a couple of tonnes per load point. Of course the keel might take a little more mostly because there's reinforcement along the centre of the hull.
A well built boat probably won't be much bothered by any of this. But being in the water is obviously more comfortable for the structure of a boat. A boat's element is in the water, not on the hard.
__________________

__________________
"Parce que je suis heureux en mer, et peut-Ítre pour sauver mon ame. . . "
Dockhead is offline   Reply With Quote
Reply

Tags
on the hard

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Name One Thing You Love and One Thing You Hate About Cruising ty.gregory The Sailor's Confessional 54 20-03-2015 12:10
A REALLY Stupid Thing Done While Doing a Stupid Thing Dick Pluta The Sailor's Confessional 31 28-04-2010 19:00
Dented Mast- How Bad Is Bad? Zednotzee Deck hardware: Rigging, Sails & Hoisting 10 25-01-2010 17:22
Home Depot Plumbing fittings - just bad or really bad? neelie Plumbing Systems and Fixtures 34 11-11-2008 18:21



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:44.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.