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 selection of Claudel Hobson carburettors for the 225 HP engine.
| Identifier | ExFiles\Box 121\3\ scan0026 | |
| Date | 8th April 1915 | |
| COPY. To E.{Mr Elliott - Chief Engineer} from R.{Sir Henry Royce} Copy to J.{Mr Johnson W.M.} " " Wor.{Arthur Wormald - General Works Manager} for EH. -9415- " " Na.{Mr Nadin} COPY. R11/IB8415. April 8th. 1915. Re Claudel Hobson Carburetters. For the R.R. 225 HP at 1600 revolutions, I think we should use the Claudel 32 m/m carburetter and the hot water jacketed induction pipe. We must use entirely separate carburetters, as we cannot rigidly fix the two together with one float feed, without danger. R.{Sir Henry Royce} At 1600 revs. the 32 m/m appears as good as the 36 nearly. Is it not for other reasons better, enabling greater HP at say 1200 to 1400, and better consumption all round ? [Handwritten in left margin] 1462 | ||