richardbayle
Member
What diameter line for mooring a 41 footer? Not a mobo!
I'm thinking 12mm.
I'm thinking 12mm.
Mooring Lines
- Thread starter richardbayle
- Start date
BelleSerene
Active member
14-16mm is easier to handle under tough conditions. 12mm perhaps a bit puny for the size of boat IMHO.
Daedelus
Well-known member
My 36' boat has 16mm lines. Overall weight about 9 tonnes.
richardbayle
Member
Thanks, for some odd reason much cheaper than the 12mm. See
http://www.mailspeedmarine.com/rope...utm_medium=base&utm_campaign=Mailspeed Marine
http://www.mailspeedmarine.com/rope...utm_medium=base&utm_campaign=Mailspeed Marine
Sandyman
Well-known member
Would agree that 12mm is a bit undersized to handle all conditions.
We are about the same size and use 18mm 3 stand nylon.
ha'p'oth of tar !!!!
Tranona
Well-known member
You can find good sizing and type information on the Jimmy Green website. 16mm for 40 footer.
snowleopard
Active member
It really isn't the strength - any size you can comfortably handle is strong enough. The problem with thinner stuff is resistance to chafe.
Think of e.g. genoa sheets. You put huge loads on them with big fat winches and they take it. Mooring lines don't take anything like that sort of load, even in extreme conditions.
Think of e.g. genoa sheets. You put huge loads on them with big fat winches and they take it. Mooring lines don't take anything like that sort of load, even in extreme conditions.
LittleShip
New member
Hmmm ! I can see where you are coming from and the logic, but, they are different types of rope, warp sheets or whatever you want to call them.
My boat weighs in around 10 ton and I snapped a 20mm warp a couple of years ago during a storm.
Personally, at 41ft I would be looking at 16mm which is what I use on Little Ship.
Tom
richardbayle
Member
http://www.theanchorstore.co.uk/pro...16mm_navy_blue_mooring_rope_canal_narrow_boat
This looks extremely good value. Comments?
This looks extremely good value. Comments?
Monique
Active member
^^^^^
Seems like good value to me as well. Only 4 meters though. Mine are 8 meters; being moored stern to, I wish the sugar scoop far away from the very hard bits.
Think about getting 4 or 6??
Seems like good value to me as well. Only 4 meters though. Mine are 8 meters; being moored stern to, I wish the sugar scoop far away from the very hard bits.
Think about getting 4 or 6??
Ex-SolentBoy
New member
44 foot boat. 18mm warps. no worries.
Joker
Active member
I would have thought that with most boats the cleats would pull out before the lines snap.
LittleShip
New member
Only if they are bolted into frozen snot
GRP some of us have boats built with organic materials Tom
BelleSerene
Active member
Don't you find that stuff (compared with multiplait) snags in fairleads and around cleats?
Pinnacle
Well-known member
Our boat is similar in size and weight - we use 20mm 3 strand.
awol
Well-known member
10mm blue polypropylene is favoured by some
snowleopard
Active member
I bought a 200m reel just for me. 4 x 10m, 3 x 20m, 1 x 30m and 80m left over that sits in the locker for when I need a really long line or the cheap polyprop wears through (none of it has yet, after 12 years use).
D
Deleted member 36384
Guest
I would recommend 18 mm staplespun polypropolene, UV stabilised. This is the hairy type of rope that floats. The hairs provide excellent abraision resistance, compared to nylon and the rope is far lighter. Another advantage is that it does not stiffen up like nylon. I have been using this for years; shock absorbing properties of nylon is very over rated in my opinion. My yacht is 41' and 12 tonnes.
rotrax
Well-known member
Sounds a bit light to me. Our boat is around 12 tons. We have 18mm three strand nylon in various lengths. It can be a bit heavy and bulky in the longer lengths for First Mate to coil but we know it is up to the job. I got 180 metres from EBAY for £120.00 delivered. Only used about a third so far so well set up for the future. Our previous boat-a 33 foot AWB snapped a 12mm chandlers mooring warp in heavy swell when attatched to a pontoon in Gosport. Dont underestimate the force applied by a sudden jerk as the bow gets thrown upwards by big swell! I spliced it and used heavy shrinkwrap tubing to cover the splices.It has lasted well-two seasons-and looks good for more.
citlab
New member
30mm will snag too
When moored aft to a pontoon our 37ft 7ton snagged one of the 30mm aft lines. despite a ss-spiral suspension fitted. The wind was high 160km/h for a short moment and big waves followed. The yachts windward to the pontoon suffered a lot damage while hitting the pontoon. We we lucky. Both aft cleats moved 3-5mm at the forward fitting. The yard fixed them and increased the size of the bolt diameter from 8 to 10mm.
So its proven that 30mm nylon mooring line will snag at the foot of the cleat before the cleat comes off.
When moored aft to a pontoon our 37ft 7ton snagged one of the 30mm aft lines. despite a ss-spiral suspension fitted. The wind was high 160km/h for a short moment and big waves followed. The yachts windward to the pontoon suffered a lot damage while hitting the pontoon. We we lucky. Both aft cleats moved 3-5mm at the forward fitting. The yard fixed them and increased the size of the bolt diameter from 8 to 10mm.
So its proven that 30mm nylon mooring line will snag at the foot of the cleat before the cleat comes off.