The USCGC Conifer was a 180 foot seagoing buoy tender. Conifer and her sister ships, commonly referred to as "one-eighties", served as the backbone of the Coast Guard's Aids to Navigation fleet for over 50 years before their replacement by the newer Juniper-class cutters.
The landing craft mechanized (LCM) is a landing craft designed for carrying vehicles. They came to prominence during the Second World War when they were used to land troops or tanks during Allied amphibious assaults.
The MV Cartela is an excursion vessel operating on the Derwent River in Hobart, Tasmania, Australia. She is now Australia's oldest continuously-licensed passenger vessel, although there are several older vessels still in service that have been restored after lengthy periods in dereliction.
The Detroit Diesel Series 71 is a two-stroke diesel engine series, available in both inline and V configurations, manufactured by Detroit Diesel. The number 71 refers to the nominal displacement per cylinder in cubic inches, a rounding off of 70.93 cu in (1.2 L).
The Flxible New Look bus is a transit bus introduced in 1959 by the Flxible Company, and produced from 1960 until 1978, when the New Look was replaced by the "870" Advanced Design Bus. Over its 17-year production run 13,121 Flxible New Look buses were manufactured.
Atlantic Salvor is a US-flagged ocean-going tugboat owned and operated by Donjon Marine of Hillside, New Jersey. Sailing under her original name Mister Darby until 1998, the boat was built by Halter Marine Inc. and launched on 1 February 1977. She was involved in the salvage operation following the wreck of New Carissa.
Gray Marine Motor Company was a U.S. manufacturer of marine engines between 1910 and 1967. These ranged from one to six cylinders in both gas and later diesel layouts, which were used in pleasure boats, work boats, and military craft.
The Detroit Diesel Series 110, with 110 cubic inches (1.8 L) displacement per cylinder, was introduced in 1945 as more-powerful alternative to the existing Series 71 engines. It was used in a variety of applications, including construction equipment, marine propulsion and power generation. The most popular use was in the Budd RDC self-powered rail car. It was also heavily used in Euclid construction machinery. In 1951 a marine version was also introduced.
The Powhatan class of fleet ocean tugs consists of seven ships built for the United States Navy, and operated by the Military Sealift Command (MSC). The lead ship of the class was launched in 1978 and the last ship in MSC service will be deactivated in 2023. During their service life, the Powhatan's were the most powerful tugs owned by the Navy.
In mechanical engineering, the cylinders of reciprocating engines are often classified by whether they are single- or double-acting, depending on how the working fluid acts on the piston.
Glenada is an ex-Canadian navy tugboat that was launched in 1943. Glenada was built by Russel Brothers Limited in Owen Sound, Ontario. It is one of twenty 1943 Glen-class tugs, eleven of which were built by the Russel Brothers Company. When it served for the Royal Canadian Navy the official number for this boat was (W30) 177886 and the Canadian Navy number was 534. The Glen-class tugs were made in two designs ; Glenada is an "A" design, with a longer main deck house, extending aft over the engine room, and uniform height bulwarks from forward to aft. A lifeboat is mounted on the bridgedeck aft of the stack. Glenada was originally powered by one Vivian 320 hp (240 kW) 8-cylinder diesel.
The Point Valour is a Canadian tug which was built by the Davie Shipbuilding Company in 1958 and is hull # 621. The Point Valour was originally ordered by the Foundation Maritime company and the original name was the Foundation Valour. There are two other "sister" boats to the Valour and the original names are Foundation Victor and the Foundation Vibert. The Point Valour is 98' long by 28' wide, but because of the rubber strips and the tires which are chained to the side of the bulwarks to act as bumpers the tug is approximately 104' long by approximately 30' wide and has a reinforcing hull able to break ice up to five feet thick. The propeller on this tug measure approximately 9' straight across. Unlike many other tugs which are "modernized", there has been very little done to this tug - most of it is all original from 1958.
M/V Robert W. is a tugboat that was built by the Russel Brothers Ltd. shipbuilding company in Owen Sound, Ontario, in 1948. The tug is 60 feet long, 16 feet wide, 8 feet 4 inches in depth, and of 48.5 gross tons. It was originally powered by two Cummins NHMS 6-cylinder marine diesel engines originally producing 175 hp each but has been repowered with 2 cummins model NT380M marine engines producing approximately 400 BHP each; the tug originally had a Sheppard 32-volt DC diesel generator for auxiliary power but has been replaced in the mid-1990s with a Lister Diesel model ST2 2-cylinder air-cooled diesel 120-volt AC generator. It was built in 1948 for the Long Lac Pulp & Paper Co. Ltd in Toronto, Ontario, until purchased by Thunder Bay Marine Services in Thunder Bay, Ontario, in 1990. In 2 locations on the Robert W. there are factory brass plaques that state the vessel is boat number 791, length is 60 feet, beam is 16 feet, and year 1948.
The lake freighter MV Saginaw was launched as John J. Boland in 1953, the third vessel to bear that name. John J. Boland was owned and operated by the American Steamship Company and constructed by Manitowoc Shipbuilding Company at Manitowoc, Wisconsin. In 1999, the ship was sold to Lower Lakes Towing and renamed Saginaw. The ship is currently in service.
Thunder Bay is a Trillium-class lake freighter cargo vessel, built and launched in China in 2013. The ship is owned, and operated on the Great Lakes, by the Canada Steamship Lines (CSL). Like her three sister ships in CSL's Trillium class, Baie St. Paul, Baie Comeau, and Whitefish Bay, the vessel is a self-unloading bulk carrier, with a conveyor belt on a long boom that can be deployed over port or starboard sides.
MV Edwin H. Gott is a very large diesel-powered lake freighter owned and operated by Great Lakes Fleet, Inc, a subsidiary of Canadian National Railway. This vessel was built in 1979 at Bay Shipbuilding Company, Sturgeon Bay, Wisconsin, and included self-unloading technology.
The Cleveland Diesel Engine Division of General Motors (GM) was a leading research, design and production facility of diesel engines from the 1930s to the 1960s that was based in Cleveland, Ohio. The Cleveland Diesel Engine Division designed several 2 stroke diesel engines for submarines, tugboats, destroyer escorts, Patapsco-class gasoline tankers and other marine applications. Emergency generator sets were also built around the Cleveland Diesel and were installed in many US warships. The division was created in 1938 from the GM-owned Winton Engine Corporation and was folded into the GM Electro-Motive Division in 1962. The engines continue in use today on older tugs.
The Balize was a wooden hulled tugboat that operated on the Great Lakes in the United States and Canada. She was powered by a single cylinder steam powered Steeple engine and fueled by one coal-fired Scotch marine boiler. She had a length of 131.50 feet, a beam of 21.58 feet and height of 12 feet.
SS Chester A. Congdon was a steel-hulled American lake freighter in service between 1907 and 1918. She was built in 1907 by the Chicago Shipbuilding Company of South Chicago, Illinois, for the Holmes Steamship Company, and was intended to be used in the grain trade on the Great Lakes. She entered service on September 19, 1907, when she made her maiden voyage. In 1911, Salt Lake City was sold to the Acme Transit Company. A year later, she was transferred to the Continental Steamship Company, and was renamed Chester A. Congdon, after lawyer and entrepreneur Chester Adgate Congdon. She was involved in several accidents throughout her career.
