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. |
I 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. |