4), a taffrail one, which, however, is not as a rule used for speeds over 18 knots.
4 the shoe H is secured to the taffrail, and the rotator in the water is hooked to the eye of the spindle M by the hook D.
To enable the indications of the log register on the taffrail to be recorded in the chart room or any other part of the vessel as desired, a chart room electric register has been introduced.
Io) is a taffrail one, with bearings of hardened steel, and is intended to be slung or secured to the taffrail by a line; the gimbal pattern has a fitting for the deck.
The two principal American taffrail logs are the Negus and Bliss (Messrs Norie and Wilson).
The Bliss resembles the Rocket log in shape, and is secured to the taffrail by a rope or slung.