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).
Performance curves for a Lorraine-Dietrich engine, showing gas velocity past valves.
| Identifier | ExFiles\Box 5a\5\ 05-page025 | |
| Date | 25th March 1927 | |
| ⑧ INDICATED MEAN EFFECTIVE PRESSURE (LBS PER SQ") R.P.M. OF ENGINE GAS VELOCITY. (FEET PER SEC) 25-3-27 Gas Vel. / I.M.E.P. Gas Vel. / R.P.M. Gas Vel. / R.P.M. Gas Vel. / I.M.E.P. 20 H.P. R.R. (INLET AREA AT VALVES = 1.964 SQ") LORRAINE-DIETRICH ENGINE. CURVES SHEWING GAS VELOCITY PAST VALVES. (INLET AREA AT VALVES = 1.61 SQ") | ||