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).
Test report detailing temperature rise and output variation for a C.5. Dynamo.
| Identifier | ExFiles\Box 61b\3\ scan0272 | |
| Date | 26th June 1930 | |
| June 26/30 ROLLS ROYCE C.5. Dynamo Curve No. LD Hot curve and temperature taken after 2 hours run at full output speed. Armature Temp: rise by resistance 89oC Field Coils ditto 77.5oC Commutator Temp: rise by Thermo:Couple 117oC Approximate variation in output in relation to dynamo volts is 0.7 amperes per volt. Condition of test Cover off. Dynamo isolated from metal testing fixture by means of wood separators. | ||