What was the name of the first Rolls Royce model?
Rolls-Royce Limited & Co. (The non-motor car interests of Royce Ltd. continued to operate separately.) During 1906 Royce had been developing an improved six-cylinder model with more power than the Rolls-Royce 30 hp. Initially designated the 40/50 hp, this was Rolls-Royce's first all-new model. In March 1908 Claude Johnson, Commercial Managing Director and sometimes described as the hyphen in "Rolls-Royce", succeeded in persuading Royce and the other directors that Rolls-Royce should concentrate exclusively on the new model, and all the earlier models were duly discontinued. The new 40/50 was responsible for Rolls-Royce's early reputation with over 6,000 built. Its chassis was used
Rolls-Royce Spey Rolls-Royce Tay. Aviation versions of the "base model" Spey have accumulated over 50 million hours of flight time. In keeping with Rolls-Royce naming practices, the engine is named after the River Spey. In 1954 Rolls-Royce introduced the first commercial bypass engine, the Rolls-Royce Conway, with a 21,000 lbf (94 kN) thrust aimed at what was then the "large end" of the market. This was far too large for smaller aircraft such as the Sud Caravelle, BAC One-Eleven or Hawker Siddeley Trident which were then under design. Rolls then started work on a smaller engine otherwise identical in design derived from