Originally Posted by Youngblood
What I do know is that you need to know the span to determine how high to attach a hammock to its supports and how much suspension line to use on each end of the hammock...
yep. And I'm such a quant that I've been planning for a while on marking my suspension cord at intervals of a foot (starting at the hammock end) to better estimate the span, and center the hammock. Once you know the span its a matter of doing trigonometry in your head to figure out how high to attach the webbing.
or just wing it.