Log, Taffrail

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Nom de l'objet :	Log, Taffrail
Artiste ou artisan :	RCMP Street Crime Enforcement Unit
Catégorie de l'objet :	Water Transportation accessory
Matériaux :	Brass
Numéro d'accession :	2015.2.1
Autres données géographiques :	[44.2327161,-64.3701303]
Date de début de production :	1800-01-01
Date de fin de production :	1909-12-31
Description :	Brass, topedo shaped log with four tail tail fins. It has a sliding shutter engraved 'Edward Massey's Frictionless Log' covering a white enamel register comprising of three dials (1/10 miles; miles; 1/4 miles). The words describing the pattern are worn off. Length 19 1/2".
Fonctions :	A log is an instrument for measuring the distance travelled by a ship. It is towed astern and is so constructed that it turns as it is pulled through the water, the number of turns is automatically counted by the gauges on the log. It then had to be taken and read. Later, an attached gauge on deck did the recording of the turns. Logs were particularly important when sailing close to shore, when speed and distance are critical. Logs were commonly found on merchant sailing ships. The log would have been used in conjunction with an hour glass to measure time, so that speed could be calculated. The harpoon los is one of the oldest and rarest of all Thomas Walker's distance measuring apparatus.
Établissement :	LaHave Islands Marine Museum Facebook-LaHave Islands Marine Museum
Ville de l'établissement :	LaHave
Province de l'établissement :	Nova Scotia

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