Reply
 
Thread Tools Search this Thread
 
Old 21 July 2013, 02:49   #1
Member
 
Country: UK - England
Town: Malton
Boat name: Ali
Make: Yam
Length: 3m +
Engine: 9.8
Join Date: Jul 2013
Posts: 6
Inflatable anchor

Hi all I have a 3m yam300s with a tohatsu 9.8 on
Could any body advise me on what weight anchor
I would need & rope thickness fishing in around
60f of water thanks. Darren
__________________

__________________
Alidaz is offline   Reply With Quote
Old 21 July 2013, 02:55   #2
Member
 
Peter_C's Avatar
 
Country: USA
Boat name: Uh...a kayak?
Length: 4m +
Join Date: Dec 2009
Posts: 1,485
Welcome to Ribnet.

For rope I would recommend having 3 times the max depth you are going to anchor in. Myself I carry 320ft with 15ft of chain, and a heavier anchor than you would need, which is a Danforth. I would recommend 3 meters of chain for you boat, and the anchor type depends on the bottom terrain, and the topside condition. So what are they? Those cheesy folding grapnel anchors would be okay if you never leave your boat alone while at anchor, but they are not to be trusted.
__________________

__________________
Peter_C is offline   Reply With Quote
Old 21 July 2013, 03:00   #3
Member
 
Country: UK - England
Town: Malton
Boat name: Ali
Make: Yam
Length: 3m +
Engine: 9.8
Join Date: Jul 2013
Posts: 6
Hi there thank for fast reply i don't leave boat at anchor
The ground I fish is rough ground boulders thanks any
Idea what weight anchor.cheers
__________________
Alidaz is offline   Reply With Quote
Old 21 July 2013, 03:35   #4
Member
 
Country: UK - England
Length: 3m +
Join Date: Sep 2008
Posts: 2,251
What sort of anchor?
Folding Grapnel? Probably the only easy thing to carry in a SIB but also the least efficient anchor design available.
You need at least 3x depth so 180ft - 8mm plait would probably be fine (5x if leaving at anchor overnight). Plus you need chain 6mm is probably thick enough. As for length - answers seem to vary. Some people say 3x depth which would sink your boat!! I think that may be for leaving overnight - you'd never pcik to anchor in 60ft overnight I suspect... For a SIB if you were to anchor and go ashore you'd probably only need to have enough depth for the tidal range and a few feet spare.

I seem to recall boat length mentioned before so 3m of chain ? Also seen twice the expected wave height mentioned some places.

Using 10ft of chain sounds about right to me. Stopping for lunch in a shallow beach you'd want all the chain out (chain on tubes is bad!) which means you'd be in 3ft of water minimum... To allow for swing on an average beach you probably need deeper (I'd say the place I sail at most often 3ft depth is about 15ft from the water edge so if you were to swing towards the shore with 10ft of chain out that only leaves 5ft behind you which is less than the boat is so you'd get bashed by the waves...

More chain or heavier hcain may make up for a rubbish anchor... But beware of making it too long or you can't anchor in shallower water without chain over the tube.
__________________
ShinyShoe is offline   Reply With Quote
Old 21 July 2013, 04:47   #5
Member
 
Country: UK - England
Town: Sussex
Make: RIBTEC 655
Length: 6m +
Engine: Yam 150
Join Date: Oct 2007
Posts: 1,157
Looking at the title I thought you were looking for an inflatable anchor, was intrigued.
__________________
thomas is offline   Reply With Quote
Old 21 July 2013, 06:47   #6
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
Quote:
Originally Posted by thomas View Post
Looking at the title I thought you were looking for an inflatable anchor, was intrigued.
I too, were disappointed after reading the title and wondering how an inflatable anchor works
__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 21 July 2013, 07:27   #7
Member
 
Country: UK - England
Boat name: Angel-B
Make: Ex Y boat
Length: 3m +
Engine: Suzuki 9.9HP
Join Date: Apr 2007
Posts: 584
Go to this link:

http://www.eng.uwo.ca/people/tnewson...144_newson.pdf

and all will be revealed

Quote:
Based on the preliminary data shown herein, the inflatable anchor system shows considerable promise for offshore use for soft clayey soils.

__________________
chris123 is offline   Reply With Quote
Old 21 July 2013, 08:11   #8
Member
 
paddlers's Avatar
 
Country: UK - England
Town: Sticks, N.Yorks
Boat name: Tamanco
Make: Honwave 3.5AE
Length: 3m +
Engine: Tohatsu Outboard
Join Date: May 2012
Posts: 1,063
Quote:
Originally Posted by chris123 View Post
Go to this link:

http://www.eng.uwo.ca/people/tnewson...144_newson.pdf

and all will be revealed

That looks like a lot of fun to read !!!!
__________________
paddlers is offline   Reply With Quote
Old 21 July 2013, 08:30   #9
Member
 
Hightower's Avatar
 
Country: UK - England
Town: Fareham
Length: 6m +
Join Date: Sep 2003
Posts: 7,855
Quote:
Originally Posted by paddlers View Post
That looks like a lot of fun to read !!!!
I'll stick to my metal one thanks
__________________
Andy

Looks Slow but is Fast
Member of the ebay Blue RIB cover club.
Hightower is offline   Reply With Quote
Old 21 July 2013, 13:09   #10
Member
 
Peter_C's Avatar
 
Country: USA
Boat name: Uh...a kayak?
Length: 4m +
Join Date: Dec 2009
Posts: 1,485
Quote:
Originally Posted by Hightower View Post
I'll stick to my metal one thanks
Why not one of the new fandangled plastic anchors?
__________________

__________________
Peter_C is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 14:47.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.