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A boom blocking the River Foyle during the siege of Derry. A boom or a chain (also boom defence, harbour chain, river chain, chain boom, boom chain or variants) is an obstacle strung across a navigable stretch of water to control or block navigation. In modern times they usually have civil uses, such as to prevent access to a dangerous river ...
A Mississippi River System-type riverboat, from an 1850s daguerrotype. A riverboat is a watercraft designed for inland navigation on lakes , rivers , and artificial waterways . They are generally equipped and outfitted as work boats in one of the carrying trades, for freight or people transport, including luxury units constructed for ...
The boat is pulling itself upstream on a cable laid along the river. The rope is wrapped around a central shaft driven by two, side-mounted water wheels (see upper diagram). Behind the river craft is a small boat-like object being pulled by the current, that is holding the cable taut and thus ensuring the necessary friction on the shaft. [4] [5]
The basic rode system is a line, cable, or chain several times longer than the depth of the water running from the anchor to the mooring buoy, the longer the rode is the shallower the angle of force on the anchor (it has more scope). A shallower scope means more of the force is pulling horizontally so that ploughing into the substrate adds ...
The Far West was often piloted by the famous river boat captain and pilot, Grant Marsh. The Far West was known as a fast boat because she had powerful engines, a hull with limited water resistance, and a low profile that reduced wind resistance. She set a number of speed records for both upstream and downstream travel on the Missouri and the ...
Bruce Anchor Co has its primary role in the very large anchor business, producing mooring anchors and permanent installation types for heavy industry, such as oilrigs. On the back of this reputation, the Bruce small boat anchor type was initially very successful, and represented some significant improvements over the CQR. It is no longer produced.