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 curve graph for a HP - S.U. petrol pump, plotting pints per hour against head in feet.
| Identifier | ExFiles\Box 140\4\ scan0298 | |
| Date | 16th October 1940 | |
| H.P. - S.U. PETROL PUMP. FROM GRAPH DATED 20.10.37. CURVE FROM PRODUCTION 30" SUCTION LIFT. PINTS PER HOUR. HEAD IN FEET. SHAW. 16.10.40. | ||