Abstract: The cartridge case volume measurement system determines case capacity by sealing the internal system volume, and then changing it by a fixed amount. The resulting change in internal pressure of the system is measured and used to compute the volume of the case. The internal system volume includes the volume of the case, the volume inside a master cylinder that is behind a master piston, the volume inside any sensors, tubing, and channels that are part of or connected to the master cylinder. A computing device uses the ideal gas law in conjunction with calibration of the system using cases of known capacity in order to compute case volume from the change in internal pressure resulting from the change in volume.

Abstract: A marine propulsion and steering system for a vessel having multiple modes of operation, an axial propulsion system, a maneuvering propulsion system and a maneuvering control system including a pilot controllable joystick for generating propulsion and maneuvering control inputs representing vessel motions desired by a pilot. An input loop is responsive to the joystick control inputs to generate maneuvering commands representing the magnitudes and directions of motions of the vessel desired by the pilot and the actuator loop controller is responsive to the maneuvering commands from the input loop to generate corresponding vessel control commands to the vessel propulsion and maneuvering systems.