What indicates a successful emergency braking action on PA5 cars?

A successful emergency braking action on PA5 cars is indicated by a normal range of 130-150 psi in the Emergency Pipe. This pressure range signifies that the emergency braking system has engaged correctly and is functioning as intended. In an emergency situation, it is crucial that the braking system has the right pressure to ensure effective and immediate stopping power.

The Emergency Pipe operates within a specified pressure to activate the brakes efficiently. If the pressure falls outside this normal range, it could indicate a failure in the braking system or insufficient pressure to effectively halt the vehicle, which would denote that the emergency braking action has not been successful.

While other indicators such as engine RPM, compliance with hand signals, and engine temperature play roles in vehicle operations and safety, they are not direct measures of the effectiveness of the emergency braking action. Thus, when assessing the success of an emergency braking maneuver specifically, monitoring the pressure in the Emergency Pipe is the most critical factor to ensure the brakes are operational and effective.