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).
Comparison of three different output curves for the Goshawk dynamo.
| Identifier | ExFiles\Box 51\1\ Scan188 | |
| Date | 19th July 1923 | |
| X. 4383 19.7.23. GOSHAWK OUTPUT CURVES REQUIRED TOGETHER ON ONE SHEET FOR COMPARISON (1) Average output curve of the dynamo at 85°C, recently sent to Messrs. Peto & Radford (this curve being the performance of the machine at some temperature, the control brush having been set in such a position as just (only) to satisfy the Specification of Production Test). Dynamo No. 288. (2) Output curve of the same dynamo (No. 288) with the control brush so set, that with the machine running on maximum output, the temperature on our bench rig will not exceed 75°C, the curve actually having been taken nearly at this temperature. (3) The curve representated by the figures contained in the general specification of electrical performance of the dynamo. EFC. {E. Fowler Clarke - Electrical Engineer} | ||