chip log


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chip log

n
(Nautical Terms) nautical a log for determining a vessel's speed, consisting of a wooden chip tossed overboard at the end of a line that is marked off in lengths of 47 feet 3 inches; the speed is calculated by counting the number of such intervals that pass overboard in a 28-second interval
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
The chip log was cast over the stern of the moving vessel and the line allowed to be pulled out by the dragging of the log.
Until the mid-19th century, vessel speed at sea was measured using a chip log. This consisted of a wooden panel, weighted on one edge to float upright and thus have substantial water resistance, attached by line to a reel.
Wyden sent a letter to the American Forest Resource Council, committing "to work to see that more hazardous fuels funds are used to harvest merchantable sawlogs" and to "work for an assured supply of timber." The act's thrust is clearly to deliver far greater volumes of valuable ponderosa pine and chip logs for biomass at below real-market prices.