Distance/angle chart?

**MikeN** · 07-06-2010, 22:19

I remember seeing mention of a chart that showed a relation between the suspension angle and distance between anchors. I did a search but evidently I'm using the wrong terms.

Does anyone remember the chart who can point me to it?

**oldgringo** · 07-07-2010, 02:32

I'm not sure one exists (although it may).

Dejoha and I discussed this as a possibility for one of his excellent visual training aids, but decided against it.

**MacEntyre** · 07-07-2010, 05:36

Originally Posted by MikeN

I remember seeing mention of a chart that showed a relation between the suspension angle and distance between anchors.

The relationship is the distance-between-trees to the height-of-the-tree-huggers, for a given suspension angle.

Not hard to make a diagram that shows that relationship, using a protractor or... <gasp> simple trigonometry.

**Ramblinrev** · 07-07-2010, 05:59

I've seen it but I would not for the life of me be able to find it again. What it demonstrated was the father apart the supports are.. the higher you need to hang in order to maintain the 30* angle so intently sought after. It wasn't all that helpful to me except to illustrate the principle. I don't remember it determining any specific numbers but I could be wrong about that.

**Scottybdiving** · 07-07-2010, 06:11

I remember seeing the picture somewhere but it is a pretty easy calculation. A 30 degree angle is a 2:1 slope. For every 2' horizontal (the hammock end to the the tree), go up 1' vertical (starting from the height of the hammock end)

KP · 07-07-2010, 06:20

I know that this chart that Knotty put up doesn't speak about the distance between trees and the end of the hammock but it's a fantastic chart on how the degrees affect the weight that's placed on the trees and in my head that also means the suspension.

http://www.hammockforums.net/gallery...l_original.jpg

**MikeN** · 07-07-2010, 13:26

Originally Posted by MacEntyre

The relationship is the distance-between-trees to the height-of-the-tree-huggers, for a given suspension angle.

Not hard to make a diagram that shows that relationship, using a protractor or... <gasp> simple trigonometry.

I hear ya, Mac...but my trigonometry fu, 27 years later, is pretty much confined to remembering the phrase "SOH CAH TOA"...

Lemme have a play with excel and see what I can come up with.

**angrysparrow** · 07-07-2010, 13:36

From an older post -

**Youngblood** · 07-07-2010, 13:54

That is one of my diagrams but I don't know if that is what they are looking for. I have posted other diagrams showing some recommended hanging dimensions involving suspension length and how high to hang versus the separation of the supports over the years, but those vary for different hammocks. Hammocks with different lengths and sag angles (or ridgeline length) have a little different 'hanging' geometry. I think this link will show what they may be looking for?

**twowheels** · 07-07-2010, 13:55

If you're trying to figure it out from the length of the hammock it's a bit more complex than people here are saying... I considered writing a program to calculate and visualize it, but was too lazy to do it... the hammock doesn't fall in a simple V, nor is it an arc on a circle, the curve is better described as a catenary, but even that's not exactly true because the material thickness is not constant all of the way from one point of attachment to the other...