I think that the pure strength of the line might work, but 4mm is so
small, (about 3/16 inch) that abrasion would likely be a serious issue.
I would suggest going up to at least 6 mm. (1/4 inch). Even then, you
will need to protect the line from abrasion where it comes to the edge
of the boat. You could also be subject to abrasion near the anchor, the
standard recommendation would be a few feet of chain.

As far as sizing an anchor rode, there are lots of rules of thumb that
you can find. I would note that 400 kg is pretty heavy, heavier than
most of us think of for a canoe. You would probably be best off using
the recommendations for a dinghy of that length.

Richard



Al D wrote:
Can anyone give some advice on selecting anchor rode for my canoe? One
reason for wanting an anchor is as a safety measure in case of getting
blown out to sea. (I'll be canoeing along the South Coast of England).
My open canoe is 14ft LOA, with a 38" beam. I have two 30mtr lengths
of new 4mm nylon braided cord (bought from B&Q). I plan to join the
two legths with a fisherman's knot. Should this suffice? The weight
tolerance of the nylon rope is not stated, but another 4mm braided
nylon rope I saw is rated at 900lb tensile strength. My anchor is an
opening grab anchor. The maximum laden weight of my canoe will be less
than 400kg.

Thank you,

Al D


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