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).
Report conclusion on heating tests for inherently controlled machines and plans for further investigation into shunt wound machines.
| Identifier | WestWitteringFiles\E\June1920\ Scan12 | |
| Date | 18th June 1920 | |
| R.R. 199 (250T) (SD676 19-7-17) MP180865 -4- EPC7/T18.6.20. Contd. is better than that for all inherently controlled machines of other makes with which we have experimented. Attached to Mr. Royce's copy of this report are photostats showing curves of the various heating tests carried out. Those curves without letters are some earlier results, and those lettered, J, K and M are those recently taken. X.40606 X.3560 (crossed out) X.1005 This report completes our investigations of inherently controlled machines, except in so far as similar tests will be necessary on the new type of Lucas dynamo and a Rotax dynamo which Messrs. Lucas are making up for us. We are now going to direct our energies to investigations of the designs and performances of small simple shunt wound machines operating in conjunction with vibrator regulator control. EFC. | ||