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).
Difficulties in obtaining the desired output from a 20/25 HP tank dynamo.
| Identifier | ExFiles\Box 163\2\ img078 | |
| Date | 16th November 1933 | |
| 86008. E.{Mr Elliott - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Wst. Hs{Lord Ernest Hives - Chair}/Wst.4/MA.16.11.33. 20/25 HP. TANK DYNAMO. We are having considerable difficulty in obtaining the output desired for the above. The trouble is not due to the windings heating up but due to the fact that the iron losses and armature short circuit currents etc., are accounting for a fairly heavy temperature rise. We are working away at this machine but it must be impressed upon the War Office that in view of the research work involved it will necessarily be some time before we can give any useful results. If the War Office want more output immediately the larger machine is the only alternative or two smaller machines in tandem. Hs{Lord Ernest Hives - Chair}/Wst. | ||