View Full Version : Chain question
04-07-2002, 02:20 PM
Is there any sort of formula on how much chain to use on your anchor? I am fishing water 60 metres plus out of an 18 ft fibreglass boat. ???
05-07-2002, 06:43 AM
After many forms of trial and error I came up with a good formula for my heavy 16 fort haines 16C.
BIG diametre chain and LOTS of it.
I'm sorry I don't have the guage off hand but the links are probably 8cms long and I run nearly 4 metres of it. I used to drag all the time - outside and in the bay.
Shop proprieters told me I didn't need anything like that for my boat.
Now I don't drag!
05-07-2002, 03:50 PM
Hi, Chain should have 8cm or 10cm links, length of chain should be 3-4 m, the chain helps stop the anchor rope from fouling the bottom and being cut off by reef. your chain also acts as a shock absorber when riding at anchor. the longer the chain helps the anchor lie flatter on the bottom and gives better holding. I have a 18ft and using 10cm chain which is 3 m long and never breakaway or drift in the bay or offshore if anchoring. hope this helps
05-07-2002, 05:28 PM
One "rule of thumb" is the same length as the boat but does depend a little on the size, type and weight of anchor one is using.
Just remember that on the way up it's all dead weight so there's a bit of a balance between too little and too much (as far as anchor boys are concerned).
For staying put I use something like about 8m of 5/16" short link chain behind a 15lb plough on a 20 foot boat but then there's a few other factors like weight and draft that can also affect things.
The last post is what is recommended. One boat length,of 8mm does the job.
To be pecise 4.0 to 6.5m boat weighing 1.5 tonnes needs a minimum of 3.5 metres, with the boat length being much better than the minimum.
Boat lengths of 7 to 10.5, weighing 2 to 3.5 tonnes need min of 7 metres of 8 mm chain.
11-07-2002, 12:36 PM
It all seems as most things, a personal preference.
The following is a guide set up by a professional offshsore fishing guide.
Reef Fishing Ground Tackle.
Reef Anchor - 350 - 500 long galvanised shaft of 40 - 50mm diameter.
5 or 6 galvanised prongs of 10mm or 3/8" diameter, shortened and turned back.
fill core of anchor with lead.
approximate weight 5 - 7 kgs
Rope - minimum 200meters of silver rope, 8 or 10mm diameter.
Chain- 4 -6 meters of 6mm diameter galvanised chain.
Bouy- 300mm diameter foam bouy with hole through centre.
Ring- stainless 90mm wide.
This set up will suit all trailerable boats that fish offshore.
Depends on where you fish as well. I once done in some chain cause the thing was way too long and wrapped around a bommie when the tide changed.. Had to cut the rope. Bugga !
Powered by vBulletin™ Version 4.1.3 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.