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 performance of a Lucas control dynamo, comparing it to a Rotax dynamo.
| Identifier | WestWitteringFiles\G\October1921\ Scan26 | |
| Date | 27th October 1921 | |
| Contd. -3- RFC1/T27.10.21. Lucas control. The machine has run on the whole very well. We confirm that we do nothink the variation due to third brush contact to be at all upsetting, and probably in this respect the Lucas machine is better than the Rotax. This dynamo will now be exchanged on the car for the Rotax. RFC. | ||