In British Columbia, the commercial fishing industry has changed dramatically. Fishing areas that were traditional high producers have been put on tonnage quotas. These quotas vary in different areas and allow only relatively small catches. While the fishing vessels that made up the trawler fleet in the past literally had energy to burn, today’s conditions call for a new breed of vessel – efficient in fuel consumption and in the operation of hydraulic deck machinery, and augmented with new technology to make time away from port as productive as possible. Because of the distances involved and the cost of bringing the product to market, these new vessels must be able to travel quickly to the fishing grounds and either ice-down or freeze and box the fish they catch. To do this cost effectively, smaller, more-efficient vessels are necessary.
We were asked to design and supply a hydraulic system for one of these new-breed fishing vessels, the Viking Moon. Constructed of marine-grade aluminum, the 60-ft long, 25-ft wide Viking Moon has a 685-hp propulsion engine that turns at 1800 rpm when making 10 knots. Some of the on-board hydraulic equipment includes: the anchor winch, two net reels, two trawling winches, a third-wire winch, four on-deck planetary winches, water pumps, an on-deck crane, processing machinery, and miscellaneous smaller items.Continue reading