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The Rolls-Royce Griffon is a British 37-litre (2,240 cu in) capacity, 60-degree V-12, liquid-cooled aero engine designed and built by Rolls-Royce Limited. In keeping with company convention, the Griffon was named after a bird of prey , in this case the griffon vulture .
The first Griffon-powered Spitfires suffered from poor high altitude performance due to having only a single stage supercharged engine. By 1943, Rolls-Royce engineers had developed a new Griffon engine, the 61 series, with a two-stage supercharger. In the end it was a slightly modified engine, the 65 series, which was used in the Mk XIV.
Depending on the supercharger fitted, engines were rated as low altitude (e.g.; Merlin 66, Griffon III), where the engine produced its maximum power below about 10,000 feet (3,000 m), medium altitude (Merlin 45), where the engine produced its maximum power up to about 20,000 feet (6,100 m), and high altitude (Merlin 70), where the engine produced its maximum power above about 25,000 feet ...
A preserved Rolls-Royce Griffon 58, one of the last Rolls-Royce piston engines to be produced. The red and white "dumb bell" object to the left of the engine is an air raid siren exhibit Rolls-Royce produced a range of piston engine types for aircraft use in the first half of the 20th century.
The early Spitfire variants powered by the Rolls-Royce Griffon were adaptations of Mk Vc (early Mk XII) or Mark VIII (late Mk XII and Mk XIV) airframes. The later Griffon-engined Spitfire variants embodied new wings, tail units and undercarriages and were very different from any of the earlier Spitfire marks.
Bentley Motors Limited is the direct successor of Rolls-Royce Motors and its predecessor entities and owns historical Rolls-Royce assets such as the Crewe factory, pre-2003 vehicle designs and the L Series V8 engine. Rolls-Royce Motor Cars, a subsidiary of BMW AG established in 1998 that began production of vehicles in 2003.
President Donald Trump has issued a slew of executive orders (EO) since beginning his second term, including one that may have an impact on your tax refund.One of Trump’s EOs initiated a hiring ...
The Supermarine Seafang was a British Rolls-Royce Griffon–engined fighter aircraft designed by Supermarine to Air Ministry specification N.5/45 for naval use. It was based on the Spiteful, which was a development of Supermarine's Griffon-engined Spitfire aircraft. By that time the Spitfire was a 10-year-old design in a period of rapid ...