What is the normal operating pressure limit for rotor brakes?

The normal operating pressure limit for the rotor brakes, specifically for the MH-60S helicopter, is established within the range of 450 to 690 psi. This range ensures effective braking while also providing adequate safety margins in operation.

Maintaining rotor brake pressure within this limit is crucial for safe helicopter operations, particularly during landings and when preparing for takeoff. If the pressure is too low, the brakes may not engage effectively, which could result in longer stopping distances or difficulty in controlling the rotor blades during engine shutdown. Conversely, exceeding the upper limit could lead to overheating and increased wear on the brake components, potentially resulting in brake failure.

By adhering to the prescribed pressure limits, pilots and crew ensure that the rotor brake system functions as intended, allowing for safe operation in various flight conditions. Understanding and monitoring these pressure limits are essential parts of the pre-flight and ground operations checklists for the MH-60S.