Reporting a speedometer reading discrepancy due to its steel mounting plate and requesting new plates made of Phosphor Bronze for trial.
| Identifier | ExFiles\Box 165\4\ img188 | |
| Date | 21th June 1933 | |
| x6023 RHC. {R. H. Coverley - Production Engineer} From Hs {Lord Ernest Hives - Chair} /Wst. Hs {Lord Ernest Hives - Chair} /Wst.5/MA.21.6.33. SPEEDOMETER & REV COUNTER MOUNTING PLATE. We have found a serious discrepancy between the makers calibrated figures and the M.P.H. figures checked by actual trial on Brooklands. Upon investigation we find that the spring plate Db {Donald Bastow - Suspensions} 140 is made in steel and this is altering the instrument magnetic characteristics. Will you please put in hand three plates to Db {Donald Bastow - Suspensions} 140 in Phosphor Bronze for trial. Hs {Lord Ernest Hives - Chair} /Wst. | ||
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).