Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 17-01-2012, 00:28   #1
Registered User
 
theway's Avatar

Join Date: Sep 2010
Location: San Francisco, CA
Boat: 1980 Pearson 323 - 34ft LOA
Posts: 374
The Best Knot For...

Ok, I have these three parts (sail car, line, PVC). The PVC is a rung on a rope ladder that I have constructed, and the slides/cars need to be tied to each rung so I can slide the ladder up the mast track.

My plan was to put the line through the PVC and do a figure 8 (one hole is needed even though I drilled two). But how do I tie the line to the mast car/slider? Any ideas? I want it to be as strong and as tight as possible since it steadies the ladder as I climb. (The plastic zip tie will be removed, it was for a temporary test)



Thank you
austin
__________________

__________________
theway is offline   Reply With Quote
Old 17-01-2012, 02:02   #2
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: 19,743
Re: The Best Knot For...

I always use a bowline to tie a line to a ring. I believe it is the strongest knot in that configuration.

Alternatively, there is the round turn and two half hitches, but I think that would be bulky in that application.

Are you going to have one point of attachment for each rung? If I were you, I would consider two points of attachment near the ends of each rung, then allow enough line to the sail car to have a favorable angle of pull. I think that will be much stronger. I believe your weight might collapse that PVC piping if you attach it only from the middle, plus you won't be able to step on one end.
__________________

__________________
Dockhead is offline   Reply With Quote
Old 17-01-2012, 08:40   #3
Registered User
 
theway's Avatar

Join Date: Sep 2010
Location: San Francisco, CA
Boat: 1980 Pearson 323 - 34ft LOA
Posts: 374
Re: The Best Knot For...

Many thanks for the suggestions, those are the two knots that seemed most acceptable when I thought it over. I thought the bowline would create too much distance between the PVC and the car, and also use more line than I would like. I had similar thoughts as you about the round turn and two half hitches.

Yes i do plan to only attach the PVC in the middle, Im not sure of another way, as it will be run up the mast track. The PVC is very strong, and held fine when I tested it with the plastic zip ties, the only problem in the test was that some of the zip ties came out. Also, the 3 strand nylon is fairly elastic, so as I stepped up on one side it did sag that side (which seems to be a similar issue to what you are describing).
__________________
theway is offline   Reply With Quote
Old 17-01-2012, 09:03   #4
Registered User
 
HappySeagull's Avatar

Join Date: Dec 2010
Location: B.C.,Canada
Boat: 29'
Posts: 2,395
Re: The Best Knot For...

Lash it on.
NOT a piece of (slippery)rope.
I would use heavy "seine twine".It is 3 strand,tarred nylon twine used in nets.Use a midsize.Not the thickest,not the thinnest...just the one that stretches a tiny amount with a strong pull.

added:
Lash around the whole rung-not just thru those holes
but maybe start your first 3 turns thru them.
I wouldn't have put those holes in.Holes weaken.I'd have used maybe a screw head to keep lashings from any very slight shifting on the slippery rung,but a good lashing won't move much along it!
__________________
HappySeagull is offline   Reply With Quote
Reply

Tags
knot

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
Want To Buy: Wanted- Dummy Plug for Standard Horizon Knot Log Impeller sww914 Classifieds Archive 2 07-01-2012 11:05
At Great Risk - the KNOT Thread micheck General Sailing Forum 5 16-11-2011 02:42
Dock Knot Nirvava Seamanship & Boat Handling 27 29-09-2011 17:40
How to Check that a Knot Is Tight sailorboy1 The Sailor's Confessional 0 17-09-2011 11:34



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 20:10.


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.