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Walkers Cherub II Ship’s Log, Ca. 1900-1930
Thomas Walker & Son Ltd, Birmingham
Maker:
Collectie:
NavigArte
In this automated mechanical log, the counter was mounted at the stern while the spiral rotor turned in the water. The device no longer had to be retrieved from the sea to be read.
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This log was used to record a ship's speed. This device would have a line and 'fish' or spinner attached to the rear. The spinner was then cast into the sea, and as it turned in the ship's wake, the revolutions were counted by the mechanical log to record the distance travelled and the speed.
This type was also used on the trainingship Mercator.
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