Requesting speedometer recalibration following a change in the rear axle ratio.
| Identifier | ExFiles\Box 165\2\ img175 | |
| Date | 6th May 1938 | |
| To HPS {Horace Percy Smith - Experimental Factory Mgr} /WSC. {W. S. Cassel} c. to RC {R. Childs} /CAP. 6051. Rm {William Robotham - Chief Engineer} /RC. {R. Childs} 20/JH.6.5.38. A.T. SPEEDOMETER OFF 27.G.VI. The above car has been fitted with a rear axle of the new ratio of 8/34. Consequently the speedometer No.S.920 requires to be re-calibrated to the new value of 730 r.p.mile. Will you please arrange accordingly. Rm {William Robotham - Chief Engineer} /RC. {R. Childs} | ||
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).