Abstract: A heat exchanger that includes a vessel, a cooler within the vessel, the cooler includes a smooth cylindrical interior wall, a cover that seals the vessel, and, a cooling medium filling a portion of the interior of the cooler, wherein the cooler includes sufficient volume to allow the cooling medium to expand during a phase change from a liquid to a solid.

Abstract: A retrofit kit for exhausting gases is provided for removing combustion products from a gun turret. In some embodiments, the combustion products are toxic gases that include ammonia, hydrogen cyanide, and carbon monoxide. The retrofit kit includes a fan and an EMI filter. The fan and the EMI filter are attached to the gun turret with one or more seals that provide both environmental and EMI/RFI protection. In operation, the fan is activated in response to the firing of the gun, and is powered using the power supply provided to the gun turret. In some embodiments, the fan operates for a predetermined time interval after the last operation of the gun.

Abstract: A stowage magazine is provided for securing a can of ammunition rounds. The magazine includes a frame having lateral sides that define a space for the can; a hinge mechanism connecting to the lateral sides; and a door connecting to the mechanism. The door provides and restricts access to the space in respective open and closed positions. The door is openable along an axial direction to provide an operational surface. The mechanism avoids lateral obstruction beyond the door's surface.