Rolls-Royce R engine was invaluable in the subsequent development of the Rolls-Royce Merlin engine and the Spitfire. A de-rated R engine, known as the Griffon, was tested in 1933, but it was not directly related to the production Rolls-Royce Griffon of 1939, of the same exact bore/stroke and resultant displacement figures as the "R" design. Three examples of the R engine are on public display in British museums as of 2014. Rolls-Royce realised that the Napier Lion engine used in the 1927 Supermarine S.5 Schneider Trophy winner had reached the peak of its development, and that for Britain's entrant in the next
Rolls-Royce Deutschland Rolls-Royce Deutschland Rolls-Royce Deutschland is a subsidiary of aircraft engine maker Rolls-Royce plc with facilities at Dahlewitz outside Berlin and Motorenfabrik Oberursel at Oberursel near Frankfurt am Main. It was formerly BMW Rolls-Royce (BRR), a joint venture company between BMW and Rolls-Royce established in 1990 to produce the BR700 family of jet engines. Rolls-Royce took full control of the company in 2000, renaming it Rolls-Royce Deutschland. As well as continuing to produce the Rolls-Royce BR700 family of turbofans, the subsidiary is also involved in the Europrop TP400 engine for the Airbus A400M military transport plane. Rolls-Royce Deutschland has inherited responsibility