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).
Dynamo and crankcase modifications for the Bensport and 20/25 HP engines.
| Identifier | ExFiles\Box 132\3\ scan0005 | |
| Date | 10th February 1933 | |
| X216. To BY.{R.W. Bailey - Chief Engineer} from E/JNR.{Charles L. Jenner} c.c. for. Hs.{Lord Ernest Hives - Chair} E/JNR.{Charles L. Jenner}7/HP.10.2.33. re Bensport and 20/25 HP. Crankcase. We send you herewith: LeC.3374 showing the dynamo and drive for the above engine. A Phantom 2 dynamo is fitted and driven at engine speed. The standby magneto is deleted altogether, and there is a new position for the oil filler at a suitable distance away from the exhaust downtake pipe. We also send you LeC.3375 showing the machining for the dynamo cradle on a crankcase, which is common to both Bensport and 20/25 HP. The speed of the dynamo on the 20/25 being as before 1.5 times engine speed. E/JNR.{Charles L. Jenner} | ||