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 performance curves for a Hispano engine with its specifications.
| Identifier | ExFiles\Box 72\4\ scan0154 | |
| Date | 12th March 1924 guessed | |
| CURVES FOR. HISPANO ENGINE. BORE X STROKE = 100 X 140 m/m.{Mr Moon / Mr Moore} CAPACITY 6.59 LITRES. COMPN RATIO 4.67. Left Y-Axis: COOLING WATER FLOW GALL / MIN. 5 10 15 20 Right Y-Axis: INDUCTION PIPE DEPN. INS. OF WATER. 0 5 10 15 20 Upper Curve: INDUCTION PIPE DEPN. Lower Curve: WATER FLOW. | ||