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 plotting actual and theoretical B.H.P and B.M.E.P curves against R.P.M. for different engine configurations.
| Identifier | ExFiles\Box 43\1\ Scan109 | |
| Date | 28th August 1925 guessed | |
| B.H.P B.M.E.P R.P.M C D CURVE No X ACTUAL & THEORETICAL CURVES COMPRESSION RATIO 6.28/1 EAGLE IX CAMSHAFTS INLET VALVE TIMING I.O. 10° T.D.C. I.C. 54° C. EAGLE VIII CARBS D.{John DeLooze - Company Secretary} EAGLE IX CARBS ACTUAL CORRECTED FOR BAR & TEMP. THEORETICAL CONDOR IV COMP RATIO 6.28/1 (CALCULATED) | ||