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In the Dutch province of North Holland, a vlotbrug is a retractable pontoon bridge which opens for water traffic by retracting in its long direction, with the roadway sliding under fixed structure(s) on canal bank(s). This article relates to bridges of that design. In the eastern Netherlands, a name for that design of bridge was scholle.
Tigerfish Aviation is an aerospace research and development company based in Norwood, South Australia. [1] The company has been developing a retractable pontoon system for the float plane industry, which has been patented as Retractable Amphibious Pontoon Technology or RAPT since the late 1990s.
A pontoon bridge is a collection of specialized, shallow draft boats or floats, connected together to cross a river or canal, with a track or deck attached on top. The water buoyancy supports the boats, limiting the maximum load to the total and point buoyancy of the pontoons or boats. [ 2 ]
A Braby pontoon constructed at Evans Bay in Wellington, New Zealand in 1951 consisted of 124 large square steel tanks connected together and ballasted with water and oil. [9] The pontoon was U-shaped, 110 feet (34 m) long and 74 feet (23 m) wide. Flying boats were winched tail-first into the U so that passengers could step onto the pontoon dock ...
A retractable bridge is a type of moveable bridge in which the deck can be rolled or slid backwards to open a gap while traffic crosses, usually a ship on a waterway. This type is sometimes referred to as a thrust bridge. The bridge is retracted to the right. Borden Avenue Bridge, Long Island City. Retractable bridges date back to medieval times.
A pontoon boat is a flattish boat that relies on nautical floats for buoyancy. Common boat designs are a catamaran with two pontoons, or a trimaran with three. [2] In many parts of the world, pontoon boats are used as small vehicle ferries to cross rivers and lakes. [3] An anchored raft-like platform used for diving, often referred to as a pontoon