If anyone wants to explore the effect of rope, chain and kellets on rode
centenary and maximum horizontal tension
http://www.johnsboatstuff.com/Articles/anchor.htm has a good spreadsheet for
calculating it. Scroll to the bottom of the page.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com