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Old 08 May 2012, 16:03   #1
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Tow rope thickness

Is 10mm tow rope as shown below too thin for a boat towing the average 5m rib?

What would you recommend?

High visibility floating security / tow rope 10mm canoe | eBay

Thanks.
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Old 08 May 2012, 16:27   #2
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A decent braided 10mm rope from the chandlers would be fine but wouldn't trust a floating rope with the same diameter for the same job.
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Old 08 May 2012, 16:49   #3
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been using a canoe throw bags for 20 yrs now same rope thickness (multiple bags) worked for me all the time.
OFC depends what you are towing.
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Old 08 May 2012, 16:56   #4
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Quote:
Originally Posted by maxhar View Post
Is 10mm tow rope as shown below too thin for a boat towing the average 5m rib?

What would you recommend?

High visibility floating security / tow rope 10mm canoe | eBay

Thanks.
be careful about thin nylon ropes... they stretch and it hurts and burns when it breaks. I would not tow a 5 meter rib with anything less than 12-14 mm unless the sea is flat.
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Old 08 May 2012, 17:12   #5
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Good quality 10mm or 12 mm braided rope, for small boat to 5m rib. Use a shock absorber. Small tire --O----, especially if lumpy conditions.

P
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Old 09 May 2012, 01:34   #6
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Ideally, you want something other than nylon for towing, unless you take a lot of care to prevent backlash should it break. Nylon stretches, and if it goes, it tends to snap back with a lot of force. The cutting someone in half thing has been proven wrong, but it will still break bones or leave a decent welt. Tying a large piece of cloth (towel or similar) every 20 feet or so will increase drag through the air and slow it down pretty well.

If you anticipate having to tow, get a dacron or polypro rope of adequate thickness. Of course, if it's an emergency, use what you've got and hope for the best, but anticipate the worst.

That said, I think the USCG generally use nylon tow ropes as a cost point type thing, but they clear decks while towing.

jky
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Old 09 May 2012, 04:28   #7
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I'd use 10mm nylon, the stretch will act as a shock absorber and take the strain off the fittings.
Regards it snapping you should never be towing that quick to have such a great strain on it....
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Old 09 May 2012, 04:43   #8
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Should add that most of our towing will be done on the non-tidal thames where the water is almost always flat.
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Old 09 May 2012, 11:08   #9
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I'd use 10mm nylon, the stretch will act as a shock absorber and take the strain off the fittings.
Regards it snapping you should never be towing that quick to have such a great strain on it....
Not a matter of quick, it's a matter of the rope failing.

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Old 09 May 2012, 14:22   #10
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Not a matter of quick, it's a matter of the rope failing.

jky
Whenever we tow anything the rope is just under tension, I've never worried about it snapping.
If its tight like a piano wire then I would but done properly you shouldn't have any troubles.

I got a Series 3 Landy pulled out of a ditch with 14mm 3 strand rope, the rope was fine, it did stretch but then the Landy pinged out.
If you have any concerns wrap some other rope around it so it breaks the whip effect.
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