From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Inquiry to A.T. Speedometer Co. about the impact of reducing speedometer drive speed by 30%.
| Identifier | ExFiles\Box 50\4\ Scan155 | |
| Date | 8th December 1927 | |
| 4308 Hs {Lord Ernest Hives - Chair} /Rm {William Robotham - Chief Engineer} 3/LG. Expl: Dept: 8th. Dec. 1927. Messrs. The A.T. Speedometer Co., 20, Avonmore Rd., West Kensington, London W.14. Dear Sirs, We are proposing to reduce the speed of the speedometer drive by 30%. We should like to know whether this will produce a difficulty in the speedometer manufacture or whether you could make speedometers to function with the present accuracy when driven at the slower speed. Yours faithfully, | ||