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Whenever the Potomac River level is below 3.5 ft (1.1 m) on the Little Falls gauge 6,000 cu ft/s (170 m 3 /s), there is a sheer drop between the end of the concrete channel and the river. In certain conditions of high course flow and low river level, a stream-wide retentive hydraulic, or "sticky hole," posed a hazard to paddlers who failed to ...
The first whitewater slalom race took place on the Aar River in Switzerland in 1933. [1] The early slalom courses were all set in natural rivers, but when whitewater slalom became an Olympic sport for the first time, at the 1972 Munich Games, the venue was the world's first concrete-channel artificial whitewater course, the Eiskanal in Augsburg.
The nature of artificial whitewater courses necessitates the need for a drop in the river, and enough water flow to provide hydraulics. When this isn't possible (often in flat low-lying areas), electric pumps are used to lift and re-circulate the water to the top of the course. The shapes of these courses are commonly circular or U-shaped.
Range operations rely on land-based radar and electro-optical time-space-position-information systems to monitor and transfer test data to the Central Control Facility on Eglin AFB. These instrumentation systems, located on Santa Rosa Island and other locations provide coverage for test and evaluation activities in the Gulf of Mexico .
A slipway, also known as boat ramp or launch or boat deployer, is a ramp on the shore by which ships or boats can be moved to and from the water. They are used for building and repairing ships and boats, and for launching and retrieving small boats on trailers towed by automobiles and flying boats on their undercarriage .
The sale has not closed, so the purchase price is not yet publicly available. The property includes a 47,000-square-foot winery and 2,800-square foot tasting room on 18.3 acres at 660 Frontier Avenue.
Special Operations Craft – Riverine is a boat used by the United States Navy to perform short-range insertion and extraction of special operations forces in river and near-shore environments. It replaced the Patrol Boat, River , and the mini armored troop carrier .
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