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Thomas Walker & Son were inventors and makers of nautical instruments in the 19th and 20th centuries. The firm made one of the most commonly used navigation instruments, the 'log' which allowed sailors to measure distance at sea, [1][2] one of the main measurements used in nautical navigation. The firm was founded by Thomas Walker in Birmingham ...
Logbook (nautical) Logbook aboard the frigate Grand Turk. A logbook (a ship's logs or simply log) is a record of important events in the management, operation, and navigation of a ship. It is essential to traditional navigation, and must be filled in at least daily. The term originally referred to a book for recording readings from the chip log ...
Walker's Cherub Taffrail Log - showing how its dial is attached to a plank mounted on the ship's taffrail.(Scalloway Museum) A taffrail log is a mechanical device used to determine a ship's speed. The device obtains its name because the dial was typically attached to a plank that was secured to the taffrail of a ship.
A logbook (or log book) is a record used to record states, events, or conditions applicable to complex machines or the personnel who operate them. Logbooks are commonly associated with the operation of aircraft, nuclear plants, particle accelerators, and ships (among other applications). The term logbook originated with the ship's log, a ...
A chip log consists of a wooden board attached to a line (the log-line). The log-line has a number of knots at uniform intervals. The log-line is wound on a reel so the user can easily pay it out. Over time, log construction standardized. The shape is a quarter circle, or quadrant with a radius of 5 inches (130 mm) or 6 inches (150 mm), [1] and ...
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Battle of Valparaíso [2]. The Battle of Valparaíso, also called the Capture of USS Essex, was a naval action fought during the War of 1812.It took place off Valparaíso, Chile on March 28, 1814, between the frigate USS Essex and the sloop USS Essex Junior of the United States Navy and the frigate HMS Phoebe and sloop HMS Cherub of the Royal Navy.
HMS Cherub was an 18-gun Royal Navy Cormorant -class sloop built in Dover in 1806. She participated in two major campaigns in the West Indies during the Napoleonic Wars, and one major engagement in the Pacific during the War of 1812, all each of which earned her crews clasps to the Naval General Service Medal.