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ABB provided an azimuth thruster for ShinNihonkai Ferries in form of the CRP Azipod, [2] claiming efficiency gains from the propeller (about 10% increase [3]) and a simpler hull design. Volvo Penta have launched the IPS (Inboard Performance System), [4] an integrated diesel, transmission and pulling contra-rotating propellers for motor yachts.
This would mean that the propeller would turn counterclockwise when going astern and the stern would walk to port. This aided in docking operations, where "port side to" was the preferred situation and the vessel would be brought to the dock with a small bow-in angle and backing would flatten the angle, slow or stop the vessel and walk it ...
Traditionally, marine insurers such as the underwriters at Lloyd's of London covered cargo in the course of international commercial voyages by sea, providing coverage on an "all risk" basis: physical loss or damage from any cause was covered unless the policy specifically excluded that cause.
In marine propulsion, a variable-pitch propeller is a type of propeller with blades that can be rotated around their long axis to change the blade pitch. Reversible propellers—those where the pitch can be set to negative values—can also create reverse thrust for braking or going backwards without the need to change the direction of shaft revolution.
The vessel is equipped with a manipulator arm on the starboard side of the pressure hull, a system to drop ballast, and a cluster of five, fixed direction, ducted propeller, marine thrusters at each of the port and starboard ends of the outer hull for propulsion and maneuvering, as can be seen in the photographs. These thrusters provide three ...
The Seaview SVII is an underwater camera designed by the Catlin Seaview Survey team, intended to photograph coral reefs to provide visual documentation of a reef's health. . The camera is designed to be controlled by a diver in shallow waters, and is propelled at a constant slow speed by a propeller mounted near the rear of the cam
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The term acoustic signature is used to describe a combination of acoustic emissions of sound emitters, such as those of ships and submarines. In addition, aircraft, machinery, and living animals can be described as having their own characteristic acoustic signatures or sound attributes, which can be used to study their condition, behavior, and physical location.