Abstract: A remotely operated vehicle system includes a vehicle having a propulsor and a steering means. A remote operating console is provided that is capable of providing power, receiving sensor signals and controlling the vehicle. The vehicle is connected to the console by a tether. The tether having elements supporting power, sensor and control transmission. The vehicle has video sensors and sonar sensors. An underwater gun is positioned on the vehicle and joined to the console to fire in response to control signals. In further embodiments the vehicle can be provided with a turret for aiming the gun and the video sensor.

Abstract: A submarine is equipped with an extending apparatus on whose free end a container (4) resistant to underwater pressure is arranged, in which an essentially recoil-free gun (5) lies. The container (4) in the submerged condition of the submarine may be brought to the water surface (15) by way of the extending apparatus, and pivoted out so that one may also shoot in the submerged condition.

Abstract: A watercraft includes a ventilation system for ventilating the engine compartment and for providing air for induction into the watercraft engine. An air duct extends through the hull and communicates with the engine compartment. An induction box is attached to a deck of the hull and encloses a space around the air duct. The induction box is sized so that pressure pulses are dissipated within the box. A portion of an outer edge of the induction box is cut way, forming an opening through which air can flow. A cowling substantially covers the induction box. Another structural aspect includes a pair of air ducts, each having an associated induction box. An opening of one induction box is generally forwardly facing. An opening of the other induction box is generally rearwardly facing.

Abstract: A warship has a unit seating extending around an opening in a ship's deck with a platform mounted in the seating and levelled relative to the main scantling plane of said warship, and a functional unit installation, e.g., a weapon or a navigational apparatus, on the platform. A container carried beneath the platform, accommodates a part of the functional unit installation. Vertically resiliently acting supports carry at least a part of the weight of the platform, the container and the installation and allow limited horizontal movement of the container relative to the supports.

Abstract: A warship with individual standardized operating units and a central command post unit has standardized information transmission lines independent of the type of units arranged on the individual standard platforms. A data processor (11', 11", 12' to 31') is provided inside each standardized operating unit (11, 12 to 31). The information to be transmitted is brought into a suitable form for transmission via the standard information transmission lines. Furthermore, the information received via the standard information transmission line is transformed into a form suitable for processing in the standardized operating units (11, 12 to 31).

Abstract: The invention concerns dynamic ballast and stabilization systems for deep-sea applications such as the dynamic anchoring and stabilizing of off-shore platform structures supported by an elongated structure of the type having the lower ends fastened into the floor of a body of water. The system employs a relatively large impellor assembly which generates a downward vertical thrust of sufficient magnitude as to maintain the platform anchored. The structure is designed to absorb shock and movement within a prescribed range to cushion and protect operating equipment. The impellor is enclosed in a movable slinger which can control the lateral direction of the impellor generated thrust such that lateral displacement of the structure is counteracted by the underwater reactive force generated by the impellor. This system includes means for converting the flow of seawater into usable power for driving the system.