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).
The performance issues of a twin carburetter under various driving conditions.
| Identifier | ExFiles\Box 13\3\ 03-page298 | |
| Date | 13th March 1931 | |
| To Hs.{Lord Ernest Hives - Chair} From Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} *7080 HS{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux}1/KT.13.3.31. R.R. TWIN CARBURETTER. 22-EX. With the present settings of the carburetter, slow running stationary is very good and even. On the road a steady 6 M.P.H. can be maintained. The carburetter is very susceptible to inclines, when standing, engine runs erratic due to starveness and richness respectively. The acceleration is normal up to 35 MP.H., above this speed it feels to be a definite improvement. It is very bad for building up, pulling hard at low speeds. At high speeds, cornering, carburetter gives out, the impression being shortage of petrol most probably due to insufficient flow as this does not occurr at medium speeds. Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} | ||