What is the maximum allowable hydraulic class for the S.E. in the Navy?

The maximum allowable hydraulic class for the S.E. (Support Equipment) in the Navy is Class 3. This classification system is used to categorize hydraulic fluids based on their properties and performance characteristics. Class 3 fluids are typically formulated to provide a balance between performance, safety, and environmental concerns.

Class 3 hydraulic fluids are designed to meet stringent operational requirements, ensuring compatibility with various components used in military applications, including aircraft and support equipment. Their formulations help in maintaining the performance of hydraulic systems, particularly in demanding environments where reliability is paramount. This allows for the effective functioning of critical systems on Navy aircraft like the MH-60S.

In comparison, other classes such as Class 1 and Class 2 may not have the same capabilities or properties that are essential for military use, particularly in high-performance or harsh operational scenarios. This is why Class 3 is the maximum allowable class for hydraulic systems in the Navy, reflecting the necessity for high performance and safety standards in military operations.