Principles Of Tension

The tension in equally loaded slings is easily demonstrated using the following formula:

$\frac{W \times L}{No \times H} = Tension (\text{ in each sling })$

W = Weight of load

L = Length of slings

No = Number of slings

H = Height (vertical distance between attachment points)

It can be seen that tension will increase as the angle between the sling legs increases.