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 analyzing engine brake horsepower versus RPM for various air silencer carburetor configurations and losses.
| Identifier | ExFiles\Box 13\3\ 03-page171 | |
| Date | 9th December 1929 | |
| AIR SILENCER CARB DEVOLOPEMENT ② ANALYSIS OF SILENCER LOSSES ENGINE N° SS{S. Smith}-7 STD. INDUCTION PIPE OPEN EXHAUST STANDARD CARB BRAKE HORSE POWER RPM OF ENGINE CURVE Ⓐ: AIR SILENCER CARB. (L.C. 2734) FITTED WITH STD. H.S. COILS, AIR VALVE & DIAPHRAGM. CURVE Ⓑ: DITTO, BUT CENTRE TUBE (ET9642) OF SILENCER REMOVED. CURVE Ⓒ: SAME AS Ⓐ BUT WITH CENTRE AND SECOND TUBES (ET9642/5) REMOVED. CURVE Ⓓ: SAME AS Ⓐ, BUT WITH CENTRE, SECOND & THIRD TUBES (ET9642/4/5) REMOVED. CURVE Ⓔ: SAME AS Ⓐ, BUT WITH ALL SILENCER TUBES (ET9642/3/4/5) REMOVED. | ||