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Old 07 October 2013, 21:59   #21
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Manson supreme. Awesome. reversible pull.
i think it would break my heart if i ever lost one or had to cut it free!
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Old 07 October 2013, 22:33   #22
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Trimix - you have overengineered your anchor solution. You'll NEVER lift that off the seabed unless as someone said, you have a windlass.

I reckon that a 10kg and 10m chain is more holding than that boat will EVER need, never mind need in water you'd dive in. Consider buying a 5-7.5kg Bruce and some chain and use this for "sheltered" anchoring - keep the biggie for emergencies.

IIWY, I'd try lifting your twinset 20 meters by rope while leaning out a window. 'Cos that's what it would be like lifting the rig you describe.
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Old 08 October 2013, 08:47   #23
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Yes, that does seem heavy now you put it like that, good point - I think I got carried away with the calculations

Thinking about lifting that up does make me think of Popeye !

Mmmm, so I will go for say a 7.5kg anchor and say 10m of chain then.
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Old 08 October 2013, 09:02   #24
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Actually, thinking about it I got some numbers from a website for sailing - of course they are going to need much heavier gear as they have more boat in the wind.
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Old 08 October 2013, 09:08   #25
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Quote:
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Yes, that does seem heavy now you put it like that, good point - I think I got carried away with the calculations

Thinking about lifting that up does make me think of Popeye !

Mmmm, so I will go for say a 7.5kg anchor and say 10m of chain then.

Plenty & you'll still know when you've pulled that up. Last thing you want to be doing after a dive is busting your nuts pulling up a bloody great anchor. We never leave the boat un-attended BTW when we're diving, we always have a cox & never anchor. I think I've used my anchor probably 1/2 a dozen times in 5 years.
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Old 08 October 2013, 09:19   #26
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We will also be using the boat to cruise a bit and I intend to spend the night on it a few times - once its in Corsica, so Id like the security.

Dive wise, at least we dont have tides to worry about, and the spots we will use are sheltered bays. There are some more adventurous sites we plan to do, but they will be done with someone on the boat and not anchored.

For the dives where its just me and my wife, its more likely to be 20-30 sheltered coves, not current, no waves, no tides. The guys we normally dive with out there have about 5m of chain and a pathetic anchor which they normally wedge in a crack in the rock when we are down on the dive. Then the last one up up wedges it. Very French style

To be fair there is little to no chance of the boat moving, no other boat traffic and in the last 8 years of diving there Im yet to see a wave.
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Old 08 October 2013, 11:38   #27
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I only have a baby 6.0m and do similar when in Paxos - leaving her anchored whilst we go off diving. I can tell you, this really focusses you on underwater navigation skills . The first year I did it i spent half my dives worrying if she would still be there when I came back !
Most of the locations I anchor in are in sheltered bays or atop rocky pinnacles - one of which has some tricky currents.
I only have a 5kg folding grapple ( less than ideal I know), with 6 m of chain and andwith a good length of warp out, she never moves. The chain is as everyone points out, the key. I do where unsure of the current, wedge the anchor into a convenient crevice if possible, and then liberate on my return.
I use uncalibrated (no windlass) stainless chain - clean, rust free & definitely worth it for your very beautiful new toy.
I dont have a roller fairlead but do have on on the transom so use this to retrieve the anchor as opposed to pulling up over the bows - really saves on scoring the rubbing strake and tubes
Do take time to see how the RIB settles at anchor before jumping in - if only for peace of mind
Enjoy

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Old 08 October 2013, 11:56   #28
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Cheers Jeff, good to know its not just the crazy French who leave their RIBS unattended then while they go of for a dive.
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Old 08 October 2013, 20:44   #29
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search for a seller on ebay called uk-yacht-rigging-supplies, i cant recommend them enough. they sell anchor rope ready spliced to chain etc. if its not listed then ask them. fast delivery too. ive used them countless times and never let me down yet, good quality gear too.
+ 1 really impressed with these guys and rapid delivery
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Old 08 October 2013, 22:31   #30
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*googles uk-yacht-rigging-supplies*
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Old 08 October 2013, 22:58   #31
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Cheers Jeff, good to know its not just the crazy French who leave their RIBS unattended then while they go of for a dive.
Depends on the site, but I dive off a dead (unattended, anchored) boat probably 75% of my dives. 15-20% I dive off an anchored but attended boat (if we get swept away or lost they pull the anchor and come get us). 5% of our diving actually requires a live unanchored boat.
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Old 08 October 2013, 22:59   #32
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*googles uk-yacht-rigging-supplies*
It's an eBay shop you can collect ( I did once ) but it's at Grimsby
http://stores.ebay.co.uk/UK-YACHT-RI...D-SUPPLIES-LTD
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Old 08 October 2013, 23:02   #33
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It's an eBay shop you can collect ( I did once ) but it's at Grimsby
YACHT, STAINLESS items in CHANDLERY store on eBay!
Just bought a red ensign from them great quality as well
for the price

http://www.ebay.co.uk/itm/RED-ENSIGN...item20d915916b
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Old 08 October 2013, 23:08   #34
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Just bought a red ensign from them great quality as well for the price http://www.ebay.co.uk/itm/RED-ENSIGN...item20d915916b
£5.98 its a good job you only go out 1 once a year cos that's all it will last.
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Old 08 October 2013, 23:12   #35
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£5.98 its a good job you only go out 1 once a year cos that's all it will last.
believe it or not it is good quality material same as the RIBnet flag... but a lot cheaper
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Old 09 October 2013, 08:37   #36
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Oh, flags - I suppose I need one of those as well dont I ?
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Old 09 October 2013, 09:11   #37
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I have a 1kg one for my 4m...it's so cute!
I need to get a better anchor for my sr4, currently have a grapnel. Is 1kg OK or would you go for the 2kg if buying again? How big is the 1kg?

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Old 09 October 2013, 09:14   #38
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I need to get a better anchor for my sr4, currently have a grapnel. Is 1kg OK or would you go for the 2kg if buying again? How big is the 1kg?

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ah. but will the 2kg still be cute
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Old 09 October 2013, 09:23   #39
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I need to get a better anchor for my sr4, currently have a grapnel. Is 1kg OK or would you go for the 2kg if buying again? How big is the 1kg?

Chris

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I have both 1 and 2kg on mine, if you are going to leave the boat anchored the go with the 2 kg, having said that the 1 kg has never let me down!
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Old 09 October 2013, 09:27   #40
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I have both 1 and 2kg on mine, if you are going to leave the boat anchored the go with the 2 kg, having said that the 1 kg has never let me down!
sounds like a good plan to me, now wheres me xmas list gone
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