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All these boats are unsinkable by injection into the hull of closed cell polyurethane foam in reserved spaces, this material is very light compared to water (about 30 times less heavy): with these buoyancy reserves, the boat itself full of water always remains in positive buoyancy; they also have a tight sealed compartment.
It has foam flotation for positive buoyancy. [1] [3] The boat has a draft of 5.00 ft (1.52 m) with the centerboard extended and 9 in (23 cm) with it retracted, allowing beaching or ground transportation on a trailer. [1] The boat is normally fitted with a small 3 to 6 hp (2 to 4 kW) outboard motor for docking and maneuvering. [1] [3]
Buoyancy also applies to fluid mixtures, and is the most common driving force of convection currents. In these cases, the mathematical modelling is altered to apply to continua, but the principles remain the same. Examples of buoyancy driven flows include the spontaneous separation of air and water or oil and water.
It displaces 175 lb (79 kg) and has positive flotation buoyancy tanks, making the boat unsinkable. [1] [2] [9] The boat has a draft of 2.00 ft (0.61 m) with the daggerboard extended and 3 in (7.6 cm) with it retracted, allowing operation in shallow water, beaching or ground transportation on a trailer or car roof. [1] [2]
The name "U-Boat Worx" is derived from "underwater boat”, referring to the boat-like handling that was distinctive in the original C-Quester design". A so-called double-hull principle that did not only use diving tanks to achieve positive buoyancy, but also a secondary boat-like hull that could be pumped empty was to make the submersible ...
The boat has foam flotation for positive buoyancy. [1] [4] The boat has a draft of 4.50 ft (1.37 m) with the centerboard extended and 1.17 ft (0.36 m) with it retracted, allowing operation in shallow water, beaching or ground transportation on a trailer. [1] [4] The boat is normally fitted with a small 2 to 6 hp (1 to 4 kW) outboard motor for ...
The painter, a rope used for securing a boat like a mooring line, is usually tied around the mast step. Buoyancy bags are installed inboard along each side in the front half of the boat and at the stern to provide buoyancy in the event of capsizing. Two straps, known as "hiking straps", run lengthwise along the floor from the bulkhead to the ...
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