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An Amtrak catenary maintenance vehicle. Both a crane and a movable platform can be seen on the vehicle's roof. A catenary maintenance vehicle (also known as a tower wagon or tower car) is a railroad maintenance of way vehicle that is used to maintain and inspect overhead line (also known as catenary) on electrified railroad or metro tracks.
The derrick tower can be a mast or a post with the bottom hinged at the base where all ropes meet. The top of the tower is secured with multiple reeved guys to position the top of the tower to the desired location by varying the length of the upper guy lines. The load is lifted using a pulley system connected to the top of the tower. [2]
Speeder in use in Santa Cruz, California. A speeder (also known as a section car, railway motor car, putt-putt, track-maintenance car, crew car, jigger, trike, quad, trolley, inspection car, or draisine) is a small railcar used around the world by track inspectors and work crews to move quickly to and from work sites. [1]
The Teledyne CAE J402 is an American small turbojet engine. Several variants have been developed to power unmanned air vehicles such as missiles and target drones. Developed in the 1970s for the Harpoon anti-ship missile, the J402 was the first jet engine to be designed as a "wooden round", meaning that the engine had to be able to sit for long periods without maintenance or inspection and ...
Greenville, South Carolina, has an all Sutphen fleet including a heavy rescue, two engines, and a 100-foot (30 m) platform. [citation needed] Kenosha, Wisconsin, maintains an all Sutphen fleet of 7 Engines and 3 Ladder trucks. The newest piece of apparatus is Ladder 7, a 2007 110-foot (34 m) tower. [citation needed]
The tallest guyed tower is currently the 2,060 feet (630 m) KRDK-TV mast in Traill County, North Dakota, USA. The mast on heavy equipment such as a crane is its main supporting tower, typically of trussed steel construction. Wire rope guys typically led back to the crane's base stabilize it and support its ability to bear significant shear ...
Seoul Robotics has developed a mesh network that reportedly imparts Level 5 autonomy to vehicle fleets, if only for the last mile.
The first modular self-propelled trailers were built in the 1970s. In the early 1980s, heavy haulage company Mammoet [ 6 ] refined the concept into the form seen today. [ 7 ] They set the width of the modules at 2.44 m, so the modules would fit on an ISO container flatrack .