This International Standard establishes the general specifications for constant displacement hydraulic motors to be installed in aircraft, which transform hydraulic power into mechanical energy in the form of a rotational torque to 35 000 kPa systems.

Primary and secondary function motors (see clause 3) are covered in this International Standard; actuators with internal rotation angle limits and low-speed motors are not covered in this International Standard.

This International Standard shall be used in conjunction with the detail specification particular to each application.