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).
Consumption test report for a 40/50 chassis at various speeds.
| Identifier | ExFiles\Box 183\M22\ img037 | |
| Date | 12th May 1919 | |
| To R.{Sir Henry Royce} from EH. c. to CJ. c. to En. c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} X 3056 49-GB X.3056. CONSUMPTION TEST ON A 40/50 CHASSIS AT VARIOUS SPEEDS. X.2631. These tests were taken on 49-GB. The engine is similar to the high compression engines we are at present making. The tests were taken on the Ashbourne to Buxton roads - a test was run each way of the road and the mean taken. M.P.H. M.P.G. Water Temp. 20 20.5 85º 30 18.5 85º 40 16.0 85º 50 14.5 85º During these tests the mixture was adjusted at each speed - standard mex spirit. EH. | ||