Disclaimer: The calculations on the Rig World site are intended for professional riggers who understand them and know how to interpret the results. Neither Ben Kilmer, Rig World or its affiliates make any claims or warranties about the accuracies of the results from these calculations. Anyone using these pages accepts full responsibility for how they use the results and agrees to hold Ben Kilmer, Rig World and its affiliates harmless for any errors or results of any errors that may result from the use of these calculations.
This is a very simple spreadsheet for figuring bridles with beams of equal height, using a short leg that you pick, and making all adjustments in the long leg. This spreadsheet requires you to have some general knowledge of leg length and basket return. Simply enter your point name(optional), beam span, the distance in feet that your point is from center of the bay, the total leg length(including basket return) that you want to use as your short leg and load weight(optional). The spread sheet will give you the length of your long leg(subtract your basket return), link count, the vertical distance of your bridle apex from the beam and your bridle forces. Below is a link to an interactive spreadsheet that you can copy and use and a sample.