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  2. Type R ship - Wikipedia

    en.wikipedia.org/wiki/Type_R_ship

    USS Aludra (AF-55) (built as SS Matchless a type R2-S-BV1 ship) at sea, 17 September 1954 SS Adria (AF-30), a type R1-M-AV3 Adria-class ship, in 1949. The Type R ship is a United States Maritime Administration (MARAD) designation for World War II refrigerated cargo ship, also called a reefer ship.

  3. Reefer ship - Wikipedia

    en.wikipedia.org/wiki/Reefer_ship

    By 1890, after acquiring the patent rights of Franz Windhausen's CO 2-compression refrigeration system, the J & E Hall company installed the first marine CO 2 refrigerator system on the Nelson Line ship Highland Chief. In 1900, a worldwide survey found 356 refrigerated ships, 37% of which had air machines, 37% ammonia compressors and 25% CO 2 ...

  4. 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 ...

  5. Liftboat - Wikipedia

    en.wikipedia.org/wiki/Liftboat

    The boat was declared a total loss at an estimated cost of $1.14 million. The Ram XVIII was a 215-foot liftboat, built in 2015 and owned by Aries Marine Corporation in Lafayette, Louisiana . The National Transportation Safety Board (NTSB) determined that the probable cause of the accident was an industry failure of not providing liftboat ...

  6. Travel lift - Wikipedia

    en.wikipedia.org/wiki/Travel_lift

    A small motor-boat lifted from the water by a travel lift at La Rochelle, France, 2016. A travel lift or travelift (also called a boat hoist, boat gantry crane, or boat crane) is a specialised type of crane used for lifting boats out of the water and transporting them around docks or marinas. [1]

  7. List of boat lifts - Wikipedia

    en.wikipedia.org/wiki/List_of_boat_lifts

    Geheyan dam boat lift, also in Hubei Province, capable of lifting vessels of 300 tons displacement. The dam was completed in 1994, but technical difficulties delayed the opening of the ship lift for four more years. Longtan dam boat lift, capacity to lift vessels of 250 tons, in a basin 40×10.8×1.8 meters, and a vertical lift of 68.5 meters. [2]