Step 14: Knots
The other knot you'll want to know is the box sling. This is the knot that goes around the payload box, and connects it to the main flight string by a double fisherman knot. http://notableknotindex.webs.com/boxsling.html
As a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.