genie, knock it off. you are a mechanic on twenty year aircraft engines of
seventy year old engine designs. what you know about catenaries wouldn't fill
a plastic coffee stirrer spoon from Mickey D's.

***dum squat*** "Gene Kearns"
Date: 9/17/2004 9:49 AM Eastern Daylight Time
Message-id:

On 15 Sep 2004 12:26:41 GMT, (JAXAshby) wrote:

2) It serves as a shock absorber, helping to absorb the boat's movement due
to the wave action.

you obviously do not understand the mathematics of catenaries. NOBODY
chains a
boat to a dock, or a rock on shore.


Nobody needs the properties of a catenary at a dock, either. Nobody
makes a big deal about creating a catenary, when tying to a dock.
Nobody in their right mind would even mention such a stupid and
unrelated concept, if they were trying to make a logical argument.

It doesn't take much of a wind to pull chain tight enough to be considered
zero
point zero zero zero zero zero three seven three of a shocker absorber.

Stoopid, stoopid, stoopid.

The intrinsic shape of a catenary is the shock absorber. Once the
shape of the catenary has been pulled tight enough for the resultant
to become a line, all holding power is pretty much lost, as the
vertical component on the anchor increases. At that point, by
definition, we aren't talking about catenaries, anyway.

So, which is easier to pull tight, a line catenary or a chain
catenary?

Here is a URL that will conclusively... and mathematically, prove that
Jax doesn't have a clue what he is talking about..... and, moreover,
that he is just plain wrong (again). This website includes a snappy
macro driven spread sheet that will work out nearly any what-if you
could ever imagine concerning line, chain, scope, tension, etc., etc.,
etc. It really *is* neat....

http://alain.fraysse.free.fr/sail/ro...ic/sta_hom.htm
--



Grady-White Gulfstream, out of Southport, NC.

http://myworkshop.idleplay.net/cavern/ Homepage
http://www.southharbourvillageinn.com/directions.asp Where Southport,NC
is located.
http://www.southharbourvillageinn.linksysnet.com Real Time
Pictures at My Marina
http://www.thebayguide.com/rec.boats Rec.boats
at Lee Yeaton's Bayguide