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).
Graph analysing the power loss of an Air Silencer Carburettor by comparing Brake Horse Power against engine RPM under four different configurations.
| Identifier | WestWitteringFiles\U\May1930-July1930\ Scan012 | |
| Date | 6th May 1930 | |
| 6-5-30 V851 AIR SILENCER CARBURETTOR (LEC 2786) ANALYSIS OF POWER LOSS ENGINE No SS{S. Smith}-7 STANDARD INDUCTION SYSTEM. OPEN EXHAUST. STANDARD CARBURETTOR WITHOUT AIR INTAKE. BRAKE HORSE POWER R.P.M. OF ENGINE CURVE A = COMPLETE AIR SILENCER CARBURETTOR. CURVE B = AIR SILENCER CARB., WITH OUTER SILENCER TUBE E80482 REMOVED. CURVE C = AIR SILENCER CARB., WITH BOTH TUBES E80481/2 REMOVED. CURVE D = AIR SILENCER CARB., WITH ENTIRE SILENCER REMOVED. 150 140 130 120 110 100 90 80 1500 2000 2500 3000 | ||