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Old 21 July 2012, 20:47   #1
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Anchor rope / painter

I have a 5.5m (18ft) Humber Attack RIB and need some advice as to what weight anchor I should use and what diameter of rope/painter line I should use. Advice welcomed.
Thanks
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Old 22 July 2012, 03:37   #2
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anchor rope length - Google Search


Keep the painter shorter than the boat so it can't reach the prop
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Old 22 July 2012, 03:40   #3
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It is quite an emotive topic, so brace yourself. At least you didn't ask this on a yachty forum!

You will want a fair bit of chain, it is the chain that does the work. Your not just heaving a dead weight over the front.
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Old 22 July 2012, 05:20   #4
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Quote:
Originally Posted by ajstars View Post
I have a 5.5m (18ft) Humber Attack RIB and need some advice as to what weight anchor I should use and what diameter of rope/painter line I should use. Advice welcomed.
Thanks
Re. anchor, chain, rope. Generally, heavier, longer & thicker is best. But then you get to the practicalities of handling & storage. On my 6.4 I have a 7.5kg CQR with 8m of 10mm chain, (the chain is way ott, but it was left over from a job) All fastened to 60m of 12mm Anchorplait. Any heavier & I'd stuggle to pull it all in, but the combination has good holding power. Anchors are critical safety items that oft get overlooked, especially as they are usually out of sight. Peeps will happily spend hundreds on shiny, VHFs, PLB, flares, lifejackets etc, but when that engine fails by a lee shore...........................
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Old 22 July 2012, 05:32   #5
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Agree with Pikey re. safety a lee shores. Further to that, don't be tempted with a cheap nylon type anchor line, It'll twist and turn a generally do it's own thing which often results in tangles.
I use a good quality 8 strand plait. I flake it into the anchor locker rather than attempt to coil it. It would deploy in seconds without fear of a tangle.
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Old 22 July 2012, 06:02   #6
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Peeps will happily spend hundreds on shiny, VHFs, PLB, flares, lifejackets etc, but when that engine fails by a lee shore...........................
I thought that was why you had two

I use 10mm three strand white nylon for my anchor line but mainly due to a lack of other locally available options (apart from 24mm, and that was a bit big!). I don't recommend it, as it does tangle easily.
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Old 22 July 2012, 08:16   #7
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I thought that was why you had two
it is
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Old 22 July 2012, 11:51   #8
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Anchors are critical safety items that oft get overlooked, especially as they are usually out of sight. Peeps will happily spend hundreds on shiny, VHFs, PLB, flares, lifejackets etc, but when that engine fails by a lee shore...........................
Agreed +1

You just have to look at the North Star rib incident this week. Don't know specifics yet - apart from the rib had engine trouble and drifted onto rocks. Early deployment of an anchor could have saved the situation.
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Old 22 July 2012, 16:55   #9
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You just have to look at the North Star rib incident this week. Don't know specifics yet - apart from the rib had engine trouble and drifted onto rocks. Early deployment of an anchor could have saved the situation.
Indeed. The excuse for parking the other one next to is probably needs to be different though
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Old 22 July 2012, 20:31   #10
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Re. anchor, chain, rope. Generally, heavier, longer & thicker is best.
Disagree as far as the line goes. Assuming a reasonably sized nylon rode, the line should stretch as the boat surges in the swell. Use too large a line (or a low-stretch line of any size), and the boat will not generate the force to stretch the line, resulting in a lot of harsh snatch and jerk stuff as the boat rides on the hook. May or may not be really bad depending on conditions of seas and boat, but can be fairly destructive over time.

Chain, yes, bigger is better as long as it doesn't get cumbersome to the point of not wanting to deploy becuae of it.

Anchor: size ideally depends on the type, which ideally depends on the bottom structure and seas you'll be anchoring in.

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