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).
Comparison of petrol consumption between two different carburettor configurations.
| Identifier | ExFiles\Box 1\8\ B001_X100 Engine Chassis-page269 | |
| Date | 19th May 1933 guessed | |
| -3- no full throttle work being done throughout the run on both cars. 3.Per.II. 5.Per.II. (Twin S.U. Carbs). (Small P.II. type carbs). Mileage. 63 63 Petrol used. 2 galls. 1.5 pts. 2 galls. 4.5 pts. Petrol cons. 28.8 m.p.g. 24.6 m.p.g. Hs{Lord Ernest Hives - Chair}/G.H.Whyman. | ||