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An example of a sector light is the light of the Fisgard Lighthouse in British Columbia. The lighthouse was built to guide ships through the entrance of Esquimalt harbour. The white sector is an isophase light of 2s from 322° to 195°. If the ship sees this white light, it can pass safely. The rest shows a red light from 195 to 322°.
A simplified diagram of a two-phase alternator [1] Two-phase electrical power was an early 20th-century polyphase alternating current electric power distribution system. Two circuits were used, with voltage phases differing by one-quarter of a cycle, 90°. Usually circuits used four wires, two for each phase.
The quick turn is essentially a figure eight. On a sailboat it consists of the following steps: Change course to a beam reach and hold for 15 seconds; Head into the wind and tack, leave the jib fluttering; Veer off until the boat is at a broad reach; Turn upwind until the vessel is pointing at the victim; at this point the vessel should be on a ...
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The method for tacking of sailing craft differs, depending on whether they are fore-and aft, square-rigged, a windsurfer, a kitesurfer, or a proa.. Fore-and-aft rig – A fore-and-aft rig permits the wind to flow past the sail, as the craft head through the eye of the wind.
A Laser 2 flying its spinnaker, with the crew on the trapeze. The Laser 2 is a sailing dinghy, built predominantly of fibreglass. It has a fractional sloop rig, a raked stem, a plumb transom, a transom-hung rudder controlled by a tiller with an extension and a retractable daggerboard. It displaces 170 lb (77 kg).
Righting a turtled sailing dinghy. Righting a turtled dinghy is one of the most difficult maneuvers. Recovery in a monohull requires releasing the main sheet and jib sheet, lowering the spinnaker if it is deployed, standing on the bottom of the boat and levering on the centerboard, or standing on the centerboard (there may be weight and placement restrictions).
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