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).
The feasibility of modifying a dynamo for a tank engine to produce 20 amperes.
| Identifier | ExFiles\Box 163\2\ img074 | |
| Date | 30th September 1933 | |
| A6 008. c - Hs{Lord Ernest Hives - Chair}/Wst. BY/RD2/W.30.9.33. Dynamos for Tank Engines. With regard to the proposal to get 20 amperes at 1500 R.P.M. on the above machine, we do not think the machine is large enough to do this. When due allowance is made for the required number of conductors in the armature, there is insufficient room left for the field windings. Alternatively, to attempt to get in the required number and size of conductors in the existing diameter would result in the flux density being far too high in the armature teeth. BY/RD. | ||