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).
Test report of an AT Speedometer after 10,000 miles, noting reading inaccuracies and a failed trip counter.
Identifier | ExFiles\Box 59\2\ Scan101 | |
Date | 3rd February 1931 | |
E.J.C. X6051b. 3-2-31 J.D.113. X6051 Test of AT Speedometer D231 740 "/50 off 18 GIX after 10000 miles This speedometer has been tested & is reading 0.5 M.P.H. lower than previously & has a percentage fall of reading of 2.4 as against 2.1 previously. The trip counter failed to register whilst running on the rig. g.j. | ||