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).
Recommendation to fit a new A.T. Speedometer Co. total mileage recorder following successful endurance testing.
| Identifier | ExFiles\Box 59\2\ Scan181 | |
| Date | 24th November 1932 | |
| X605/b To By.{R.W. Bailey - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Wst. c.c. E.{Mr Elliott - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Wst.4/AD24.11.32. A.T. SPEEDOMETERS The A.T. Speedometer Co. have submitted to us for test recently a standard 20/25 speedometer with a new total mileage recorded of their own manufacture. The American Veeder counter is fitted on all speedometers supplied to us and this new counter is an effort on their part to produce a counter equal in quality to the Veeder. The arrangement of the new counter is also much neater in appearance than the Veeder. We have carried out a bench endurance test on this instrument consisting of 500 hours duration running at 600 R.P.M. (45 M.P.H.) which is equivalent to 22500 miles running on the chassis, without any failure or irregularity. We therefore recommend that this total mileage recorder be fitted to standard production speedometers as soon as convenient. Hs{Lord Ernest Hives - Chair}/Wst. | ||