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A pusher, pusher craft, [1] pusher boat, pusher tug, or towboat, is a boat designed for pushing barges or car floats. In the United States, the industries that use these vessels refer to them as towboats. These vessels are characterized by a square bow, a shallow draft, and typically have knees, which are large plates mounted to the bow for ...
The Tugboat Roundup is a gathering of tugboats and other vessels in celebration of maritime industry. The Waterford Tugboat Roundup is held in the late summer at the confluence of the Hudson and Mohawk Rivers in Waterford, New York. The tugs featured are river tugs and other tugs re-purposed to serve on the New York State Canal System. [15]
Bollard pull is a conventional measure of the pulling (or towing) power of a watercraft.It is defined as the force (usually in tonnes-force or kilonewtons (kN)) exerted by a vessel under full power, on a shore-mounted bollard through a tow-line, commonly measured in a practical test (but sometimes simulated) under test conditions that include calm water, no tide, level trim, and sufficient ...
Crowley Maritime terminated their operations in the San Francisco area in the early 1990s and the Nokomis was reflagged Panamanian and abandoned along with many other tug boats, to decay and rust. [6] [7] She was rediscovered in mid 2002, in the mudflats of Hunters Point, San Francisco, by Tugboat Master Melissa Parker. [8]
The Tugboat hitch (a.k.a. Backhanded mooring hitch or Lighterman's Hitch) is a knot ideal for heavy towing, or making fast to a post, bollard, or winch. It is easy to release, even under great load .
Azimuth thruster. A Z-drive is a type of marine propulsion unit. Specifically, it is an azimuth thruster.The pod can rotate 360 degrees allowing for rapid changes in thrust direction and thus vessel direction.
Angels Gate is a tugboat preserved as a museum ship at the Los Angeles Maritime Museum in San Pedro, Los Angeles, California. Angels Gate was built in 1944 for the United States Army as tugboat ST-695, a 327-F design. [1] [2] The Army's small tugs, designated ST, ranged from about 55 to 92 ft (17 to 28 m) in length.
The Mary D. Hume was a steamer built at Gold Beach, Oregon in 1881, by R. D. Hume, a pioneer and early businessman in that area.Gold Beach was then called Ellensburg. The Hume had a long career, first hauling goods between Oregon and San Francisco, then as a whaler in Alaska, as a service vessel in the Alaskan cannery trade, then as a tugboat.