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The PADI recreational dive planner, in "Wheel" format. The Recreational Dive Planner (or RDP) is a decompression table in which no-stop time underwater is calculated. [1] The RDP was developed by DSAT and was the first dive table developed exclusively for no-stop recreational diving. [2]
The boats that are used for trawling are called trawlers or draggers. Trawlers vary in size from small open boats with as little as 30 hp (22 kW) engines to large factory trawlers with over 10,000 hp (7.5 MW). Trawling can be carried out by one trawler or by two trawlers fishing cooperatively (pair trawling).
In sailing, the limit of positive stability (LPS) or angle of vanishing stability (AVS) is the angle from the vertical at which a boat will no longer stay upright but will capsize, becoming inverted, or turtled.
The United States Regional Fishery Management Councils limit bottom trawling in specific closed areas to protect specific species or habitat. For instance, on the United States West Coast a large Rockfish Conservation Area was created in 2002 prohibiting trawling in most areas of the coast between 75 and 150 fathoms – 450 to 900 feet (140 to ...
The higher the angular momentum, the greater the resisting force of the gyro to external torque (in this case more ability to cancel boat roll). A gyroscope has three axes: a spin axis, an input axis, and an output axis. The spin axis is the axis about which the flywheel is spinning and is vertical for a boat gyro.
Long Lake is now open, year-round, to watercraft with a 45 mph speed limit in open basins EXCEPT at night and in the morning, when the speed limit is 5 mph. (The 5 mph limit applies after 8 p.m. or official sunset, whichever comes first, to 11 a.m.) After sunset, all crafts must use proper running lights.
Speeding up to pass in Washington state Any time you speed on state roadways, you risk being pulled over. It’ll come down to the discretion of the individual trooper or officer.
The station has nine search and rescue boats, including the 52-foot (16 m) motor lifeboat Triumph (52'-SPC-HWX), two 47-foot (14 m) motor lifeboats (47'-MLB), and two 29-foot (8.8 m) Defender class response boats (25'-RBS). The 52'-SPC-HWX and the 47'-MLB have all been designed for operations in heavy surf conditions and are capable of being ...