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Argo is launched from the Knorr during the 1985 Titanic expedition.. Argo is an unmanned deep-towed undersea video camera sled developed by Dr. Robert Ballard through Woods Hole Oceanographic Institute's Deep Submergence Laboratory.
According to the Cousteau Society, "when compared to the thrust coefficient of the best sails ever built (Marconi or square types, i.e. ships of the American Cup [sic] or the Japanese wind propulsion system) that of the turbosail is 3.5 to 4 times superior and gives the system a unique advantage for the economical propulsion of ships."
The last major passenger ship built with steam turbines was Fairsky, launched in 1984. Similarly, many steam ships were re-engined to improve fuel efficiency . One high-profile example was the 1968 built Queen Elizabeth 2 which had her steam turbines replaced with a diesel-electric propulsion plant in 1986.
The ship was built with Cycloidal propulsion that was replaced during a 1989-1991 midlife refit at which time propulsion was changed to two azimuthing stern thrusters and a retractable bow thruster as well as the hull being lengthened from 246 ft (75.0 m) to 279 ft (85.0 m). The overhaul between 1989 and 1991 added 34 feet (10 m) of length to ...
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.
Rim–driven thruster, presented at SMM 2010 A rim-driven thruster mounted on a swing-out unit (design by silentdynamics GmbH) Voith rim thruster at SMM 2010 in Hamburg. The rim-driven thruster, also known as rim-driven propulsor/propeller (or RDP) is a novel type of electric propulsion unit for ships.
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RV Wecoma is a research vessel owned by the National Science Foundation and operated by the College of Oceanic & Atmospheric Sciences at Oregon State University (OSU) as a member of the University-National Oceanographic Laboratory System (UNOLS) fleet. [1] It is based in Newport in the U.S. state of Oregon near OSU's Hatfield Marine Science ...
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