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Old 17 June 2008, 15:15   #1
Country: Ireland
Town: Castlebar
Boat name: Clewless
Make: Valiant DR 490
Length: 4m +
Engine: 60 hp ETEC
MMSI: Awaitng one
Join Date: Oct 2007
Posts: 1,118
Anchor sizes for a rib

Hi all

I have a guardian G7 anchor which is a great anchor expect that it is too large to store in confort on my rib. I am looking for a smaller mor compact anchor for a 5m rib anchoring in sand is a 2 kg Claw large enough? or have you any other suggestions. I was considering making the shank and the legs either side of the fins shorter; your thoughs please


two stroke mick is offline   Reply With Quote
Old 17 June 2008, 15:26   #2
Country: UK - England
Town: Enfield/Switzerland
Boat name: Zonneschijn II/Vixen
Make: Shakespeare/Avon
Length: 7m +
Engine: Evin' 175 DI /Yam 90
MMSI: 235055605
Join Date: May 2006
Posts: 1,417
I think the basic rule of thumb says 1kg per metre boat length, but not too experienced in different types of anchoring ground, as I don't normally anchor anywhere.

Neil Harvey is offline   Reply With Quote
Old 18 June 2008, 10:06   #3
Country: USA
Town: Oakland CA
Length: 3m +
Join Date: Feb 2005
Posts: 6,623
I use a Danforth type anchor on my boat (18 foot RIB, 8 lb anchor.) As I recall, you need a relatively heavier anchor with the claw type anchors (Bruce, Lewmar knockoff, Delta, etc.)

My fluke type hooks up quite well in either sand or rock. Only place it has trouble is on flat shale (but then, so would any other anchor.) Unfortunately, that substrate is what's on my favorite dive sites.

I don't anchor in grass or mud too often, so have no experience with that type off bottom.

jyasaki is offline   Reply With Quote
Old 18 June 2008, 11:11   #4
Country: UK - England
Town: Worcester
Make: Northcraft
Length: 6m +
Engine: 115hp Yam 4 stroke
MMSI: 235063097
Join Date: Jun 2007
Posts: 156
This link may be of use

Personally, I use a Delta copy. Great anchor and you can get away with less weight because of the holding power, but not too easy to stow
Trickdog is offline   Reply With Quote

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