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 showing the internal dimensions of a Claudel-Hobson carburettor and weir induction pipe for the Phantom model.
| Identifier | ExFiles\Box 66a\2\ scan0196 | |
| Date | 25th April 1928 guessed | |
| V317 .400 1.150 RAD. .875 1.300 .265 2.800 1.300 1.750. INDUCTION PIPE DEPRESSION MEASURED AT THIS POINT. 2.000 5.000 CHOKE DEPRESSION MEASURED AT THIS POINT. 2.000 1.000 1.250 .625 1.530 & 1.800 2.625 INTERNAL DIMENSIONS OF CLAUDEL-HOBSON CARBURETTOR & WEIR INDN. PIPE. (PHANTOM). | ||