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).
Letter from The Rover Company Ltd discussing the petrol consumption of a 12 HP car.
| Identifier | ExFiles\Box 127\3\ scan0076 | |
| Date | 2nd December 1935 | |
| THE ROVER COMPANY LTD OLIVER STREET COVENTRY London Service Depot SEAGRAVE ROAD - FULHAM, LONDON - S.W.6. TELEPHONE: Nº 8081 (7 Lines) ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY AND NOT TO INDIVIDUALS Contractors to H.M. Government. TELEGRAMS: "ROVREPAIR - COVENTRY" BCM/ROVER CODES: A.{Mr Adams} B. C. 5TH EDITION LIEBERS . MARCONI MOTOR TRADE . BENTLEY Our Ref GFS/DC. Your Ref Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}26/KW.29.11.35. 2nd.December.1935. W.A.Robotham,Esq., Messrs. Rolls-Royce Limited., Derby. Dear Mr. Robotham, Many thanks for your letter. The petrol consumption claimed for the 12 h.p. is 28 m.p.g. I think the difference between this and the figure you get is mostly a matter of driving. I have myself managed to drive a 12 h.p. over short distances to give a petrol consumption of 18 m.p.g; on the other hand, I know owners who claim to get over 30 m.p.g., these of course are only potterers. We find that big engines with low axle ratios give very nearly equal petrol consumptions to the smaller jobs because their throttle opening is naturally so much less. I find the carburetter needle was not changed, but the setting merely adjusted. Yours faithfully, G.F.Searle. Service Manager. | ||