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).
Petrol consumption test results for chassis 2004 and 1649 under different conditions.
| Identifier | ExFiles\Box 20\6\ Scan017 | |
| Date | 1st October 1912 | |
| COPY FHR1/H11012. [Stamp: W.M. RECEIVED 9 OCT 1912] [Handwritten: by Wormald] [Handwritten: x 985-] Westwood, Crowborough, Sussex. 1st October 1912. Mr Johnson from F.H.R. for T.C. PETROL CONSUMPTION TESTS. ------------------------ I have got Waldron to make some petrol consumption tests under different conditions with the 2 chassis I have had here (2004 & 1649), and herewith send you the results which we obtained as I thought they might be of some interest to you. Chassis 2004. (A) With clutch out and gears} in down all hills. 16 miles per gallon. With clutch out & engine running dead slow on governor whenever possible} 14.25 miles per gallon. Average consumption.............13 miles per gallon. Chassis 1649. (A) With clutch out and gears} in down all hills. 17.5 miles per gallon. With clutch out - engine running dead slow on the governor whenever possible} 15 miles per gallon. Average consumption.............14 miles per gallon. F.H.Royce. | ||