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).
Examination and design flaws of a Rotax dynamo.
| Identifier | WestWitteringFiles\G\July1921\ Scan29 | |
| Date | 19th July 1921 | |
| To EFC. from R.{Sir Henry Royce} Copy to CJ. (struck through) " " HS.{Lord Ernest Hives - Chair} ORIGINAL R5/G19/7/21. X. 1005. RE ROTAX DYNAMO. X. 1640 I have examined the Rotax dynamo, and note your remarks as to the way they use the 28th coil. This is very ingenious, but I think the number of segments selected is bad, as the span of the coils is only three teeth, and with the spiral section of teeth and other things, some of the winding must be quite under the poles and the machine would probably have a tendency to spark and heat. We hope to do better than this. R.{Sir Henry Royce} RECEIVED STAMP: FC JUL 22 1921 RECEIVED | ||