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).
Blueprint of the internal dimensions for a Claudel-Hobson carburettor and weir induction pipe for the Phantom model.
| Identifier | ExFiles\Box 66a\1\ scan0236 | |
| Date | 25th April 1928 guessed | |
| V317 .400 1.150 RAD .265 .875 1.300 2.800 1.300 1.750 2.000 5.000 2.000 1.250 .625 1.530 & 1.800 2.625 INDUCTION PIPE DEPRESSION MEASURED AT THIS POINT. CHOKE DEPRESSION MEASURED AT THIS POINT. INTERNAL DIMENSIONS OF CLAUDEL-HOBSON CARBURETTOR & WEIR INDN. PIPE. (PHANTOM) | ||