Rolls-Royce Holdings plc is a British multinational public holding company that through its subsidiaries, designs, manufactures and distributes power systems. Rolls-Royce Holdings is headquartered in City of Westminster, London. It is the world’s second-largest maker of aircraft engines, and also has major businesses in the marine propulsion and energy sectors. Rolls-Royce was the world's 16th-largest defence contractor in 2011 and 2012 when measured by defence revenues. It had an announced order book of £71.6 billion as of January 2014.
Rolls-Royce is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index. As of June 2013, it had a market capitalisation of £22.22 billion, the 24th-largest of any company with a primary listing on the London Stock Exchange.
1906 to 1971
Rolls-Royce Limited
Rolls-Royce Limited was founded in 1906 by Henry Royce and Charles Rolls at the Midland Hotel, Manchester, as a manufacturer of luxury cars, before diversifying into aircraft engine manufacturing. The production of road vehicles remained a major activity of the company until the car business was split off in 1973 as Rolls-Royce Motors.
Rolls-Royce produced its first aircraft engine, the Eagle, in 1914. Around half the aircraft engines used by the Allies in World War I were made by Rolls-Royce. By the late 1920s, aero engines made up most of Rolls-Royce's business. The last design in which Henry Royce was involved was the Merlin aero engine, which came out in 1935; Royce had died in 1933. This was a development subsequent to the R engine, which had powered a record-breaking Supermarine S.6B seaplane to almost 400 mph in the 1931 Schneider Trophy. The legendary Rolls-Royce Merlin is revered as a British icon. The Merlin powered many World War II aircraft: the British Hawker Hurricane, Supermarine Spitfire, De Havilland Mosquito (twin-engined), Avro Lancaster (4-engine); it also transformed the American P-51 Mustang into one of the best fighters of its time, its Merlin engine built by Packard under licence. The early Merlins – Rolls-Royce piston engines were named after birds of prey – were used by the British Royal Air Force in the Hawker Hurricane and Supermarine Spitfire that won the Battle of Britain. The Merlin engine is often considered to be one of the main factors in winning the war for the Allies. Over 160,000 Merlin engines were produced.
In the post-World War II period, Rolls-Royce made significant advances in gas turbine engine design and manufacture. The Dart andTyne turboprop engines were particularly important, enabling airlines to cut journey times within several continents, whilst jet airlinerswere introduced on longer services.
Andover),Friendship, Herald and Viscount aircraft, whilst the more powerful Tyne powered the Atlantic, Transall and the Vanguard. Many of these turboprops are still in service.
Rolls-Royce turbine engines had traditionally borne numeric designations during development, and then were assigned the name of a British river on delivery. The use of river names was introduced with the earliest Rolls jet engines to reflect their nature: a steady flow of power rather than the pulses of a piston engine. RB stands for "Rolls-RoyceBarnoldswick", the latter a major ex-Rover plant north of Burnley. This facility was bought by Rolls-Royce when it traded production of tank engines (the Merlin based Rolls-Royce Meteor) for production of the first Whittle turbine engines