Graph analyzing engine power losses from various air silencer carburettor configurations.
| Identifier | WestWitteringFiles\T\2July1929-December1929\ Scan224 | |
| Date | 9th December 1929 | |
| 9-12-29 AIR SILENCER CARB. DEVOLOPEMENT ② V759 ANALYSIS OF SILENCER LOSSES. ENGINE N° S.S.-7. STD. INDUCTION PIPE OPEN EXHAUST. STANDARD CARB. BRAKE HORSE POWER. R.P.M. OF ENGINE CURVE Ⓐ: AIR SILENCER CARB. (LEC.2734) FITTED WITH STD. H.S. CHOKE, AIR VALVE & DIAPHRAGM. CURVE Ⓑ: DITTO, BUT CENTRE TUBE (E79642) OF SILENCER REMOVED. CURVE Ⓒ: SAME AS Ⓐ BUT WITH CENTRE AND SECOND TUBES (E79642/5) REMOVED. CURVE Ⓓ: SAME AS Ⓐ, BUT WITH CENTRE, SECOND & THIRD TUBES (E79642/4/5) REMOVED. CURVE Ⓔ: SAME AS Ⓐ, BUT WITH ALL SILENCER TUBES (E79642/3/4/5) REMOVED. | ||
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).