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 comparison graph of different exhaust silencer configurations, plotting Brake Horsepower (BHP) against engine speed (RPM).
| Identifier | ExFiles\Box 92\6\ scan0165 | |
| Date | 3rd June 1937 | |
| EXHAUST SILENCER COMPARISONS UNIT No. 8 CONTINENTAL P III REAR EXPANSION BOX & SWAN NECK LEGEND: ① OPEN 3" BEND ② STRAIGHT THROUGH SILENCER ③ STRAIGHT THROUGH SILENCER AND SWAN NECK ④ BURGESS TYPE SILENCER ⑤ BURGESS TYPE SILENCER AND SWAN NECK Y-AXIS (B H P): 210, 200, 190, 180, 170, 160, 150, 140, 130 X-AXIS (R P M): 3,500, 3,750, 4,000, 4,250 FD{Frank Dodd - Bodies} 3 6 37. | ||