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 and data table showing the standstill current versus temperature for an S.U. electric petrol pump at a constant 12 volts.
| Identifier | ExFiles\Box 163\1\ img012 | |
| Date | 10th April 1933 | |
| S.U. ELECTRIC PETROL PUMP STANDSTILL CURRENT — TEMPERATURE VOLTS CONSTANT AT 12 VOLTS TABLE DATA: STANDSTILL CURRENT AMPS | TEMP °C | TIME MINS 2.72 | 20 | 0 2.10 | 28 | 5 1.75 | 37 | 10 1.65 | 44 | 15 1.60 | 50 | 30 1.55 | 56 | 45 1.55 | 60 | 60 1.55 | 62 | 75 1.55 | 63 | 90 1.55 | 68 | 150 0.50 | 68 | RUNNING FREE TEMPde TAKEN ON THE CARCASE OF PUMP BY MEANS OF AN OIL BATH GRAPH AXES: Y-Axis: AMPS X-Axis: TEMPERATURE °C | ||