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Taffrail Log Rotator Mechanical speed logs called patent logs [1] or taffrail logs, operating on physical principles in a manner similar to a car's odometer by towing a vane or rotor from the stern (or taffrail) by a long line, were developed in the eighteenth century (or earlier) but became practical in the nineteenth century and replaced the ...
A taffrail should not be confused with a pushpit, which is a common name for the tubular protection rail running around the stern of a small yacht. [6] A taffrail log is a mechanical speed logging device, used like a car odometer. The taffrail log was towed from the stern or taffrail of the ship by a long line.
Impeller log:A variation of this approach is known as a patent log, which is towed from the stern of a ship. The patent log includes a mechanical register that counts the log's rotations as it is being towed. The patent log was invented in 1688 by the English instrument maker Humphry Cole. The patent log is also known as a screw log or taffrail ...
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 ...
H. Taprell Dorling. Captain Henry Taprell Dorling (1883–1968) was a British sailor, author, and journalist who served in the Royal Navy during both World War One and World War Two, giving his marine fact and fiction a notable authenticity. His Pincher Martin, O.D. (1916) is widely referenced as the source for Pincher Martin (1956) by Nobel ...
Poop deck. In naval architecture, a poop deck is a deck that forms the roof of a cabin built in the rear, or "aft", part of the superstructure of a ship. [1] The name originates from the French word for stern, poupe, from Latin puppis. Thus the poop deck is technically a stern deck, which in sailing ships was usually elevated as the roof of the ...
The taffrail log carried a serial number (3295 M / -) and the ship's agent, George Parkes was asked if that serial number matched the taffrail log carried by Canastota. Parkes replied that he was writing to the ship's owners to ask them. [36] However, it seems it was never confirmed that the taffrail log or the painted planks belonged to Canastota.
The stern is the back or aft -most part of a ship or boat, technically defined as the area built up over the sternpost, extending upwards from the counter rail to the taffrail. The stern lies opposite the bow, the foremost part of a ship. Originally, the term only referred to the aft port section of the ship, but eventually came to refer to the ...