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So, with the same input power, a greater amount of lift could be developed, and the hull could be lifted higher above the surface, reducing friction and increasing clearance. This theory was tried, tested and developed throughout the 1950s and 1960s until it was finally realised in full-scale in the SR-N1 hovercraft.
The British Hovercraft Corporation SR.N3 was a 37.5 ton hovercraft originally designed by Saunders-Roe. [1] Launched in 1963, it was primarily aimed at military deployment. It was a military version of the SR.N2 [2] Propulsion and lift was provided by four rear-mounted Bristol-Siddeley Gnome gas turbine engines that allowed the SR.N3 to cruise ...
A hovercraft (pl.: hovercraft [1]), also known as an air-cushion vehicle or ACV, [2] is an amphibious craft capable of travelling over land, water, mud, ice, and various other surfaces. Hovercraft use blowers to produce a large volume of air below the hull, or air cushion, that is slightly above atmospheric pressure. The pressure difference ...
Power was provided by four Rolls-Royce Proteus marine turboshaft engines each driving its own lift fan and pylon-mounted steerable propulsion propeller. The SR.N4 was the largest hovercraft then built, designed to carry 254 passengers in two cabins besides a four-lane automobile bay which held up to 30 cars.
British Hovercraft Corporation: Preceded by: SR.N5: General characteristics; Type: hovercraft: Displacement: 10.9 tons: Length: 17.78 m (58 ft 4 in) Beam: 7.97 m (26 ft 2 in) Height: 6.32 m (20 ft 9 in) on cushion: Propulsion: 1 Rolls-Royce Gnome turbine engines 1,050 hp (780 kW) for lift and propulsion driving single four-bladed variable-pitch ...
SR.N1. The Saunders-Roe SR.N1 (Saunders-Roe Nautical 1) was the first practical hovercraft.The concept has its origins in the work of British engineer and inventor Christopher Cockerell, who succeeded in convincing figures within the services and industry, including those within British manufacturer Saunders-Roe. [1]
During the early years of not only the SR.N6 but other hovercraft as well, the hovercraft skirt remained an unresolved area of difficulty during this era. [ 15 ] The SR.N5 was powered by a single marinised model of the Bristol Gnome turboshaft engine; this drove both a single rear-facing 9 ft (2.74 m) diameter 4-bladed Dowty Rotol variable ...
CC1 was the "second" hovercraft to lift off in 1960. Circular (18 ft 10 in). The lift rotor - driven by 170 bhp 2-litre Coventry Climax FPF engine - ran round the periphery of the hull (a plywood construction); the engine also drove two propellers (taken from a Hiller helicopter) to steer through differential pitch. The cab, at the front of the ...