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 of output curves comparing R.R. Goshawk and U.S.A. Bosch dynamos.
| Identifier | ExFiles\Box 51\1\ Scan130 | |
| Date | 23th October 1935 | |
| AMPERE OUTPUT OPERATING VOLTAGES (HOT) DYNAMO SPEED [R.P.M] OUTPUT CURVES OF R.R. GOSHAWK DYNAMOS AND U.S.A. BOSCH DYNAMO (As found on new bench rig) R.R. EXPL. 66°C R.R. No 43. 64°C U.S.A. Bosch 60°C to Full retard C.A.V.-D.B. 58°C SPECIFIED PERFORMANCE (HOT) Field Currents R.R. No 43. 64°C R.R. EXPL. 66°C C.A.V.-D.B. 58°C U.S.A. Bosch 60°C E.V.C. 23/10/35 | ||