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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 .
Butterfly clutches are used for various kind of brooches, badges, and medals. They are less secure compared to other types of pins such as prongs and safety pins, especially when the surface of the medium to which they go through is thick (e.g. wool) or when the accessory to which clutches are applied is too heavy (e.g. military order).
Some modern patrol vessels are equipped with a stern launching ramp, or simply launching ramp, for deploying smaller rescue or pursuit boats without requiring the parent ship to first come to a halt. [ 1 ] [ 2 ] [ 3 ] Typically the smaller craft are powered by water-jets, and can drive themselves up the ramp by their own power.
These facilities, in particular the airfields and naval bases, played a key role in the defense of Alaska, and in military operations against Japanese forces which occupied Attu and Kiska, two remote islands in the Aleutian chain. The Sitka facilities were designated a National Historic Landmark District in 1986. [2]
The harbor defense unit used landing craft, picket boats and 16 feet (4.9 m) Boston Whalers to monitor and protect the maritime traffic. A small craft repair facility and an Auxiliary Floating Drydock (AFDL) helped keep NSA vessels in working order. Over 130 rough terrain and warehouse forklifts and 20 cranes eased cargo handling.
Initially a linkspan was a ramp that was attached to the pier at one end and was suspended above the water at the other. The height above the water was controlled either by hydraulic rams or cables, these types of linkspans were less well designed for the various conditions of the tide, wave and current and so were superseded by underwater tank linkspans that through compressed air can be ...
Abandoned to the elements, there is a JB-2 wreck south of the ramp. Although the ramp itself is missing, its concrete pillars stand against the passage of time. Site 8OK248 ( 30°23′54″N 086°41′33″W / 30.39833°N 86.69250°W / 30.39833; -86.69250 ( JB-2 site 8OK248 ) ) is the remains of a JB-2 launch ramp (pillars only ...
The corvus (Latin for "crow" or "raven") was a Roman ship mounted boarding ramp or drawbridge for naval boarding, first introduced during the First Punic War in sea battles against Carthage. It could swivel from side to side and was equipped with a beak -like iron hook at the far end of the bridge, from which the name is figuratively derived ...