"JAXAshby" wrote in message
...
jeffies, go read the damned thing. then read it again, and again and
again.
then if you STILL don't understand what it says, go look at plaited
rope
vs
elongation, and THEN look at springy mountain climbing rope.
4 frickin' %, jeffies. get your wife to explain it to you.
The chart in the New England Ropes brochure is quite clear, at least
for
anyone with a
4th grade education. They don't bother to mention elongation below
4%.
The
chart
shows "working elongation" of over 20% for filament nylon 3-strand.
The
terms
"destructive" and "deformation" are never mentioned.
There is some feeling that after a major stress, perhaps over 25% of
tensile
strength,
nylon rode should be replaced. This not a problem for a snubber,
which
can
be
considered sacrificial. This makes a good case for downgrading a
primary
rode and
replacing it after a major blow.
"JAXAshby" wrote in message
...
jeffies, are you a lying sack of squat, or just too stupid to read
your
own
cites?
4%, dood, your cite states, just like I said. Unless, of course,
*you*
don't
know what destructive elongation is. What did you say your degree
is
in?
we
would like to hear you say it again.
One can debate whether 15% of tensile strength is a proper safety
factor,
but
for a
snubber its not that critical. This works out to snubbers in the
range
of
30 to 60
feet. Personally, the need to rig snubbers was one of the issues
that
led
me
to stop
using all-chain and go to a mixed chain/nylon rode.
"JAXAshby" wrote in message
news:20041109193940.07586.00000403@m b-m01.aol.com...
ten foot of stretch on standard twisted nylon is about 150' to
250'
of
nylon,
except under line breaking conditions.
To get a reasonable amount of shock absorption with
all-chain,
use
a
chain hook on about 30-40' of light nylon laid line and veer
out
a
few
more feet of chain. You'll get all the spring you want, but
if
there's
much fetch you don't want too slack a chain to save your bows
from
a
beating.
I've never used either a kellet or buoy, but I'd like to
experiment
with both. Who has used which?
See Complete Book of Anchoring and Mooring by Hinz page 113.
On
the
ABYC
hypothetical power boat of 45 feet and 15 foot beam the
cantenary
has
1
foot of
"droop"per 100 feet of rode at 30 knots and 0 feet at 40
knots.
If
your
boat is
smaller and has a smaller section it may be a little higher.
Hinz advocates the use of chain riding stoppers for all chain
boats.
He
points out
that all chain rodes are very good at parting or destroying
something
in
high winds.
They are also sufficiently noisey in high wind conditions to
make
sleep
difficult.
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