How much hose on a hose reel formula?

[38ff 250]

All,

I know it's out there, but cant find it..

Im trying to find the math formula for figuring how much of X size (1.75 or 2.5 inch hose) can you fit on a hose reel that you know the dimentions of. (reel length, inner diamater of the spindle, outer diamater of the sides of reel). There has to be an easier way that putting it on there.

Would also like to see the formula for booster hose, both 3/4 ID and 1 inch ID...

I know all hose is different, but there has to be some rule of thumb formula out there.

Thanks!

[jack10562 414]

Hannay has a PDF of their reel specs:

http://www.hannay.com/pages/downloads/fire.pdf