Hi, Im looking for some help with a project I am doing where I am designing a braking system for a machine. The machine can travel up to a maximum speed of 12khm and weighs 5000kg. I need to stop the vehicle in approx. 6 meters/1.2m/s deceleration, using two drum brakes which are operated with hydraulic pressure. I have calculated the required braking force F = Ma 6000 = 5000x1.2 Is there an equation to calculate the size of brake drum that I need and the amount of hyd pressure I need to operate the brake?