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).
Test results for a Hawk engine using a car carburetter, measuring fuel consumption and horsepower at various RPMs.
| Identifier | ExFiles\Box 36\2\ scan 072 | |
| Date | 22th August 1917 | |
| R.R. 6 (500 T.) (SD 747 22-8-17) MP 181926 X2935 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Hawk Engine Tests. 191 Order No. Customer's No. Test with Car Carburetter on Hawk engine. R.P.M. | Pints per hr. | H.P. | Pints per H.P. Hour 2000 | 68.5 | 121.8 | .56 1800 | 61.0 | 111.4 | .55 1600 | 52.2 | 100.0 | .52 1400 | 45.2 | 89.2 | .51 1200 | 40.8 | 78.4 | .52 1000 | 32.6 | 63.5 | .52 The distribution was better than with R.R.CH Carburetter, but was not good. Signed This Sheet must be filed on completion of the work. | ||