What is the required speed of the apparatus while conducting the braking test?

The required speed of the apparatus while conducting the braking test is established at 20 miles per hour. This speed is chosen because it provides a consistent and manageable baseline for evaluating the braking performance of the fire apparatus. Testing at this speed allows the operator to assess the effectiveness of the braking system under controlled conditions that mimic typical driving scenarios without exposing the driver, operator, or equipment to unnecessary risks associated with higher speeds.

At 20 miles per hour, the forces involved in stopping the vehicle can be accurately measured, and this speed is slow enough to ensure that the apparatus can come to a complete stop safely, regardless of its weight or load. It also allows for the evaluation of the braking response time and effectiveness, which is critical for ensuring firefighter safety and operational readiness.