I do quite a bit of work in forklift training and related. I have been trying to find an explanation for how the stopping distance (braking requirements) listed in B56.1- 4.3.2 and 7.16.4 are accomplished. I have studied 4.3.2 and 7.16.4, and drawbar pull (drag) is used in the equation. Many forklift data sheets do not list drawbar drag and some that do list them are at different speeds making it even more confusing. Anyone out there knowledgeable enough to provide an overview of how the test is actually performed and why drawbar drag is part of it? Thanks very much for any insight you can provide. Bob