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Definition of Taffrail log
1. Noun. A cigar-shaped log with rotary fins that measure the ship's speed.
Definition of Taffrail log
1. Noun. (nautical) A mechanical device dragged from the stern of the vessel that indicates the vessel's speed through the water; usually consists of a propeller, a reading unit and a stiff line connecting them. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Taffrail Log
Literary usage of Taffrail log
Below you will find example usage of this term as found in modern and/or classical literature:
1. Modern Engineering Practice: Steam, Electricity, Mechanics by Frank Wakeley Gunsaulus, Ill American School (Chicago, American School (Chicago, Ill.) (1903)
"... taffrail log. This form of log is now in common use, and shown by Fig. 11.
A description will not be given, as it may be found in most books on ..."
2. Reports and Awards by United States Centennial Commission (1877)
"John Bliss & Co., New York, NY, US taffrail log. Report. ... taffrail log, by
which the registering train is not subjected to the jerks of the towing-line, ..."
3. Shipbuilding Cyclopedia: A Reference Book Covering Definitions of by Bibber Webster, J. L. Bates, Stephen McKay Phillips, Alfred Henry Haag (1920)
""taffrail" log the registering mechanism is on the taffrail, a long line connecting
it to the rotator; in the "harpoon" log the registering mechanism is ..."
4. Trigonometry, Surveying and Navigation by George Albert Wentworth (1895)
"The taffrail log is the most convenient, since the registering apparatus can be
... But the taffrail log is not considered as reliable as the harpoon log, ..."
5. The Marine Engineer (1882)
"The speed of the vessel was determined, as slated, by the shore distances and by
the taffrail log for each lun over the base. The mean of the speeds of the ..."
6. The Building of a Wooden Ship by Charles Gerard Davis, Thomas William Clarke, Frank Steel Drown (1918)
"taffrail log—a mechanical device which is attached to the taffrail at the stern
of the ship and is used in connection with a small bronze propeller which is ..."
7. Plane and Spherical Trigonometry by George Albert Wentworth, Henry Nathan Wheeler (1887)
"The taffrail log is the most convenient, since the registering apparatus can be
... But the taffrail log is not considered as reliable as the harpoon log, ..."
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