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).
Performance comparison graph for single versus double Claudel carburettors.
| Identifier | ExFiles\Box 102\5\ scan0082 | |
| Date | 23th September 1931 | |
| COMPARISON OF SINGLE & DOUBLE CLAUDEL CARBS. RM{William Robotham - Chief Engineer} 38 INLET VALVE DIA 1.4 C/R 5.13-1 OPEN EXHAUST 112° CAMSHAFT .395 VALVE LIFT MIN: CLCE ROUND INLET VALVE .275" Single Double B.H.P. R.P.M. B.M.E.P INDUCTION DEPN. INS. HG EX IN 32 10-6 46 46-4 573 23/9/31 | ||