Load triangle strength testing:
To test the strength of the load triangles I made a sample out of a piece of scrap. Using 6.25mm ribbon and semicircles of polyester sailcloth I reinforced the edges and bottom of the load triangle. I used an extremely strong, size 69 UV-resistant nylon sail thread to stitch the components together.
The next step was to calculate the breaking strength of the prototype load triangle. To accurately determine how much the triangle could hold i gradually filled a five gallon bucket tied to the load loop with water. Water weighs 3.78 kilograms per gallon so a full bucket would weigh 18.9 kilograms.
Unable to break the fabric with one full bucket i attached another and filled it completely. Realistically the most weight the triangle would ever have to hold in normal flight would be around .9 kilograms (my weight/120 load triangles under 2G's of force). The load triangle showed no visible damage at 37.8 kilograms. i went on to hang from it (70 kilograms) where it continued to hold.