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).
Performance and consumption report for a 1939 Century Buick on a run from Derby to Brooklands and back.
| Identifier | ExFiles\Box 125\3\ scan0103 | |
| Date | 30th March 1939 | |
| 1049 + 1320 COPY FOR FILES. To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/TAS.{T. Allan Swinden} Typed 30.3.39. CENTURY BUICK 1939. Total mileage on the run Derby-Brooklands-Derby was 305 miles, covered at an average of 43 m.p.h. Overall petrol consumption 12.7 m.p.g. Oil consumption (Castrol XL.30) 1700 m.p.g. Rm{William Robotham - Chief Engineer}/TAS.{T. Allan Swinden} | ||