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 comparing air/fuel ratios across different cylinders under full and part throttle conditions.
| Identifier | ExFiles\Box 155\2\ scan0033 | |
| Date | 12th January 1937 guessed | |
| 25/30 S.14. AIR SILENCER & DISTRIBUTION. TEST N°1 STANDARD AIR SILENCER & CARBURETTER. FULL THROTTLE - FULL LOAD CYLS 1 & 2 CYLS 3 & 4 CYLS 5 & 6 PART THROTTLE - HALF LOAD THROTTLE OPENING C.T.S. AIR/FUEL RATIO PERCENTAGE THROTTLE OPENING R.P.M. 15 14 12 11 14 13 12 11 100% 90 80 70 60 50 40 30 20 10 0 500 1000 1500 2000 2500 3000 3500 4000 | ||