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 showing comparative horsepower curves for XF14 and XF12 engines, detailing the effect of intake system removal.
| Identifier | ExFiles\Box 36\2\ scan 107 | |
| Date | 14th March 1927 | |
| COMPARATIVE HP CURVES FOR XF14 AND XF12 SHOWING THE EFFECT OF REMOVING THE ENTIRE INTAKE SYSTEM E29697 & E29204 IN SCHEME E29477, ON XF12 POWER OUTPUT WITH CORRESPONDING INDUCTION PIPE DEPRESSIONS FALCON X 14/3/27 INDUCTION PIPE DEPRESSION "Hg AXIS VALUES: 2.0", 1.5", 1.0" C / BHP AXIS VALUES: 520, 500, 480, 460, 440, 420, 400 R.P.M. AXIS VALUES: 1800, 1900, 2000, 2100, 2200, 2300 CURVE LABELS: a+b, c, C, B, A A.{Mr Adams} XF14. COMPLETE AIR INTAKE SYSTEM B. XF12 COMPLETE AIR INTAKE SYSTEM C. XF12 LESS HORIZONTAL (E.29204) AND VERTICAL (E.29697) AIR INTAKE INDUCTION PIPE DEPRESSION CURVES ARE LETTERED TO CORRESPOND. | ||