"JAXAshby" wrote in message
...
some people are having a tough time with the meaning of the word catenary,
and
are thus leaving themselves open to serious damage to their boats when
anchoring.

http://www.du.edu/~jcalvert/math/catenary.htm gives a rudimentary
explaination
of catenaires and the forces thereupon. take notice of the next to last
paragraph.


You're wearing those Speedos too tight. How would these forces affect a 30
foot chain?