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  2. Backup camera - Wikipedia

    en.wikipedia.org/wiki/Backup_camera

    Backup camera view on the navigation screen of a Lexus IS 250 Backup camera on a Volkswagen Golf Mk7 hidden inside the logo. A backup camera (also called a reversing camera or rear-view camera) is a video camera specifically designed to be attached to the rear of a vehicle to aid in reversing and reduce the rear blind spot.

  3. Voyage data recorder - Wikipedia

    en.wikipedia.org/wiki/Voyage_Data_Recorder

    The protective capsule of a voyage data recorder on M/V Barfleur This image shows the AMI Marine ltd Float Free Capsule used on ships to store a minimum of 48 hours of recorded data. if the vessel sinks the capsule case (white) will open and release the Yellow capsule from inside, this capsule will then float to the surface and emit a distress signal to alert shore side authorities.

  4. Engine order telegraph - Wikipedia

    en.wikipedia.org/wiki/Engine_order_telegraph

    An engine order telegraph or E.O.T., also referred to as a Chadburn, [1] is a communications device used on a ship (or submarine) for the pilot on the bridge to order engineers in the engine room to power the vessel at a certain desired speed.

  5. Pump-jet - Wikipedia

    en.wikipedia.org/wiki/Pump-jet

    A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. The mechanical arrangement may be a ducted propeller (axial-flow pump), a centrifugal pump, or a mixed flow pump which is a combination of both centrifugal and axial designs. The design also incorporates an intake to provide water to the pump and ...

  6. Vessel monitoring system - Wikipedia

    en.wikipedia.org/wiki/Vessel_monitoring_system

    VMS runs on about 500 (growth expected to 800) vessels from small 10-meter scallop boats to 850-meter deep sea trawlers. The Vessel Monitoring System run by AFMA is provided by Trackwell Fisheries of interest include orange roughy, scallops, prawns, tuna and billfish. Fishers must use AFMA-approved VMS devices.

  7. Marine propulsion - Wikipedia

    en.wikipedia.org/wiki/Marine_propulsion

    While smaller vessels tend to have a single screw, even very large ships such as tankers, container ships and bulk carriers may have single screws for reasons of fuel efficiency. Other vessels may have twin, triple or quadruple screws. Power is transmitted from the engine to the screw by way of a propeller shaft, which may be connected to a ...

  8. Navigation light - Wikipedia

    en.wikipedia.org/wiki/Navigation_light

    Watercraft navigation lights must permit other vessels to determine the type and relative angle of a vessel, and thus decide if there is a danger of collision. In general, sailing vessels are required to carry a green light that shines from dead ahead to 2 points (22 + 1 ⁄ 2 °) abaft [note 1] the beam on the starboard side (the right side from the perspective of someone on board facing ...

  9. Dorade box - Wikipedia

    en.wikipedia.org/wiki/Dorade_box

    Limber holes perforate the wall of the box at the floor of each chamber. Dorade boxes operate on the principle that air can pass relatively freely through the chambers, yet rain or sea wash will be trapped in successive chambers and drain out of the small holes in the sides of the box. The principle can be applied to other forms.