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2. Pontoon boat - Wikipedia

   en.wikipedia.org/wiki/Pontoon_boat

   A pleasure boat with two lengthwise pontoons. A pontoon boat is a flattish boat that relies on floats to remain buoyant. These pontoons (also called tubes) contain much reserve buoyancy and allow designers to create large deck plans fitted with a variety of accommodations including expansive lounge areas, stand-up bars, and sun pads.

3. Float (nautical) - Wikipedia

   en.wikipedia.org/wiki/Float_(nautical)

   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

4. G-W Invader - Wikipedia

   en.wikipedia.org/wiki/G-W_Invader

   G-W Invader, (sometimes listed as GW Invader), began production in 1967 with its 10-foot and 16-foot boats.The "G-W" indicated the last names of the founders. The initial designs of 10 and 16 footers were that of sport racing boats with a very low profile, low weight, and shallow draft.

5. Metacentric height - Wikipedia

   en.wikipedia.org/wiki/Metacentric_height

   In a boat, the equivalent of the spring stiffness is the distance called "GM" or "metacentric height", being the distance between two points: "G" the centre of gravity of the boat and "M", which is a point called the metacentre. Metacentre is determined by the ratio between the inertia resistance of the boat and the volume of the boat. (The ...

6. Ship measurements - Wikipedia

   en.wikipedia.org/wiki/Ship_measurements

   Beam – A measure of the width of the ship. There are two types: Beam, Overall (BOA), commonly referred to simply as Beam – The overall width of the ship measured at the widest point of the nominal waterline. Beam on Centerline (BOC) – Used for multihull vessels. The BOC for vessels is measured as follows: For a catamaran: the ...

7. Beam (nautical) - Wikipedia

   en.wikipedia.org/wiki/Beam_(nautical)

   Graphical representation of the dimensions used to describe a ship. Dimension "b" is the beam at waterline.. The beam of a ship is its width at its widest point. The maximum beam (B MAX) is the distance between planes passing through the outer sides of the ship, beam of the hull (B H) only includes permanently fixed parts of the hull, and beam at waterline (B WL) is the maximum width where the ...

8. Pontoon bridge - Wikipedia

   en.wikipedia.org/wiki/Pontoon_bridge

   A pontoon bridge (or ponton bridge), also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry. Most pontoon bridges are temporary and used in wartime and civil emergencies.

9. Floating dock (jetty) - Wikipedia

   en.wikipedia.org/wiki/Floating_dock_(jetty)

   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 ...