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 heat flow to jacket water per litre against engine RPM for a 40/50 HP high compression car.
| Identifier | ExFiles\Box 38\2\ Scan232 | |
| Date | 11th September 1924 guessed | |
| SHEET 3. HT. FLOW TO JACKET WATER PER LITRE 40/50 H.P. CAR HIGH COMPN. HEAT FLOW/LITRE AT FULL LOAD Y-AXIS: B.TH.U's/MIN/LITRE. X-AXIS: R.P.M. ENG. AXIS VALUES: 200, 300, 400, 500, 1000, 1500, 2000. | ||