Power curve graph comparing the performance of the 'Super Sports' Phantom engine against the 'Continental' Phantom and an average production unit.
| Identifier | ExFiles\Box 92\2\ scan0011 | |
| Date | 28th August 1928 | |
| [ "V403", ""SUPER SPORTS" PHANTOM POWER CURVE.", "ENGINE No. S.S. 3.", "COMP. RATIO = 4.5.", "CLAUDEL-HOBSON CARB.", "AREA PAST CHOKE = 1.532 ☐"", "OPEN EXHAUST.", "VALVE TIMING (.020 CLS).", "INLET OPENS 14° AFTER T.D.C.", "INLET CLOSES 34° AFTER B.D.C.", "EXHAUST OPENS 34° BEFORE B.D.C.", "EXHAUST CLOSES 2° AFTER T.D.C.", "BRAKE HORSE POWER", "R.P.M OF ENGINE.", ""SUPER SPORTS" PHANTOM", ""CONTINENTAL" PHANTOM.", "COMP RATIO - 4.63", "TEST BED EXHAUST SYSTEM.", "CLAUDEL HOBSON CARB.", "AVERAGE UNIT TEST (PRODUCTION)" ], | ||
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).