Laying Marks
Printed From: Yachts and Yachting Online
Category: General
Forum Name: Race Management
Forum Discription: For race officers and competiors to discuss the topic
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=1117
Printed Date: 27 Jun 25 at 10:52pm
Software Version: Web Wiz Forums 9.665y - http://www.webwizforums.com
Topic: Laying Marks
Posted By: Phat Bouy
Subject: Laying Marks
Date Posted: 16 Oct 05 at 10:10pm
|
What is the recommendation/"rule of thumb" for the length of tackle
required to secure large inflatable cylinders in a depth of about 10m
on a reservoir. Under the mark is a heavy cocking weight and the ground
weight is a lump (7 shades to lift!! ) which sinks into the clay lining. Too short and the waves will get bounce the tackle along the bottom, too long the mark rides about. |
Replies:
Posted By: Ralph T
Date Posted: 17 Oct 05 at 10:52am
|
Suggest you settle for 'over long' sinking warps & let the mark ride about. On the assumption that your water does not have a perfectly flat bottom, you will need to have enough to cover the deepest point so it will automatically ride about when you drop it in a shallower part. Competitors prefer to put up with a mark which is moving around a bit rather than chase a mark which has gone walkies down the res If your mark is to be laid in the shallows, there is merit in teaching members how to tie up the slack so that someone else can undo it without spending 10 mins sorting out the tangle
|
Posted By: Stingo
Date Posted: 17 Oct 05 at 11:09am
|
Hmm, Interesting problem. Why not try a block on the bottom of
the mark with the warp lead through it and the cocking weight on the
free end. You may have to reduce the cocking weight as its now
putting twice as much pull on the mark but it will self adjust for
depth down to 1/2 the maximum length of the warp. Where I sail is strongly tidal so we cant use this setup and have to suffer floating warps with a small sinker near the buoy. That way we have a reasonable chance of getting the ground tackle back at low water after some pillock in a powerboat (usually speeding) has driven over the mark and cut it free with their prop. Maybe I should replace the warp next to the buoy with an old wire shroud and see if they can cut that :-) ------------- Stingo Alb #1554 |
Posted By: Phat Bouy
Date Posted: 17 Oct 05 at 12:54pm
| Thanks for the replies - I now have a cunning plan which I will try at the weekend |
Posted By: Phat Bouy
Date Posted: 24 Oct 05 at 10:24pm
Well, I tried Stingo's suggestion and it worked rather well until we fell foul of the knot-fairy  Mark II version will have a short length of chain directly underneath the bouy and a large steel ring that will be big enough for the knots to pass through. This is being prepared for next weekend.  All in all, the general concept is on the right lines - another exciting installment next week!  |