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RNLI inshore rescue boat during Falmouth Lifeboat Day, August 2006. A rigid inflatable boat (RIB), also rigid-hull inflatable boat or rigid-hulled inflatable boat (RHIB), is a lightweight but high-performance and high-capacity boat constructed with a rigid hull bottom joined to side-forming air tubes that are inflated with air to a high pressure so as to give the sides resilient rigidity along ...
As the boat's speed increases, hydrodynamic pressure beneath the pad causes the hull to ride higher in the water, so that eventually the boat will be riding solely upon the pad area. At low speeds these hulls ride and handle similarly to a comparable V-hull; but at high speeds the padded hull can both out-accelerate and have a higher top speed ...
She measured 94 ft overall (88 ft 6in waterline) x 11 ft 6in x 3 ft, and had a 1-shaft vertical compound engine of 359 ihp, achieving 18.2 knots. She was stricken on 27 January 1911 and sold on 18 July 1911. The authorisation for the following steel torpedo-boats was as follows: Act of 3 August 1886: TB-1; Act of 30 June 1890: TB-2
Typical trim tabs on aileron, rudder and elevator. Trim tabs are small surfaces connected to the trailing edge of a larger control surface on a boat or aircraft, used to control the trim of the controls, i.e. to counteract hydro- or aerodynamic forces and stabilise the boat or aircraft in a particular desired attitude without the need for the operator to constantly apply a control force.
Plate-type marine heat exchangers are designed with sets of multiple parallel plates that are compressed to form the main cooler unit. This type has a small footprint in comparison to other types of heat exchangers.
A keel cooler is a type of internal combustion engine cooling system used in marine engines.. In this system, engine coolant is circulated through a system of tubing outside the vessel's hull, using the lower temperature of seawater to reduce the coolant temperature via heat exchange before it is recirculated through the engine. [1]
The fundamental difference between the sea anchor and the drogue is that the drogue will slow the boat while keeping the heading steady, and is intended to be launched from the stern. The parachute anchor is designed to be launched from the bow and effectively stop the boat's progress relative to the current in an open sea.
This is the maximum depth at which a submarine is permitted to operate under normal peacetime circumstances, and is tested during sea trials.The test depth is set at two-thirds (0.66) of the design depth for United States Navy submarines, while the Royal Navy sets test depth at 4/7 (0.57) the design depth, and the German Navy sets it at exactly one-half (0.50) of design depth.
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