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 Power & Detonation performance against Intake Air Temperature for a Bentley III engine.
| Identifier | ExFiles\Box 99\1\ scan0026 | |
| Date | 1st July 1938 | |
| BENTLEY III S.50. JULY. 1938. POWER & DETONATION. INTAKE AIR TEMP. UNIT B.3. No. 1. COMP: RATIO 7:1. (E.W. 1296) (.100 OFF FACE) CAP. 119 ccs. IN. VALVE 1-60 E.W. 1429 Ex. " 1-40 E.{Mr Elliott - Chief Engineer} 61299 PISTONS: R.M. 522. (T. 1') ① MIN. ADV. FOR MAX. POWER ② LINE TO AVOID DETONATION CONSTANT SPEEDS & VARYING TEMPS. B.M.E.P. 120 110 100 90 80 2000 R.P.M. 500 R.P.M. C.T.S. INTAKE AIR TEMP. °C. 10 20 30 40 50 60 | ||