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 graph comparing Brake Horse Power vs. RPM for an engine with various carburettor and air silencer configurations.
| Identifier | ExFiles\Box 65a\3\ scan0182 | |
| Date | 6th December 1929 | |
| 6-12-29 V757 AIR SILENCER CARBURETTOR (LE C. 2734.) ENGINE No SS{S. Smith}-7 STANDARD INDUCTION MANIFOLD, OPEN EXHAUST. BRAKE HORSE POWER R.P.M. OF ENGINE STANDARD CARB. MODIFIED AIR SILENCER CARB. (STD AIR VALVE & H.S. CHOKE, ENLARGED HOLES IN SILENCER). AIR SILENCER CARBURETTOR (ORIGINAL FORM). Stamp with initials and date: 6-12-29 | ||