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 Hispano engine, showing cooling water flow versus induction pipe depression.
| Identifier | ExFiles\Box 180\M4\M4.2\ img010 | |
| Date | 25th February 1923 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. COOLING WATER FLOW GALL./MIN. INDUCTION PIPE DEPN INS. OF WATER. WATER FLOW | ||