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).
Suitability and modification of dynamos and motors from various manufacturers for the Goshawk II electrical system.
| Identifier | WestWitteringFiles\G\September1921\ Scan47 | |
| Date | 13th September 1921 | |
| R.R. 285a (100 T) (S.H. 159. 11-8-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2800 ORIGINAL. EFC2/T13.9.21. R.{Sir Henry Royce} & E.{Mr Elliott - Chief Engineer} from EPC. c. CJ. & PN.{Mr Northey} c. By.{R.W. Bailey - Chief Engineer} & Da.{Bernard Day - Chassis Design} c. Rg.{Mr Rowledge} & EP.{G. Eric Platford - Chief Quality Engineer} c. Hm.{Capt. W. Hallam - Head Repairs} c. R.R. of America Inc. X.4359. X.4342. X.4341. RE DYNAMOS AND MOTORS OF OTHER MAKES. With reference to dynamos and motors of other makes for "Goshawk II"; we have noted that the electrical system on Goshawk II is to be an entirely earthed system. The machines, however, from Messrs. Lucas, Rotax, Smith and C.A.V. are either completed, or very nearly completed as insulated machines, and we do not propose to have modifications made at the moment to make these entirely suitable for the earthed system as this will not affect the testing out of these machines. In every case we have written to the makers, and they state that such modifications if required will be very easily carried out. With reference to the Lucas machines, we are expecting to receive both dynamo and motor during the next few days. With reference to the Rotax dynamo, we have already received this (the first received) and are proceeding to investigate on the bench whether the output of this complies with our specification. With reference to the Smith machines, Messrs. Smith have again stated that they do not think their motor will satisfactorily start the Goshawk engine. One would have thought they could have provided the motor with windings which would enable it to do this to their satisfaction, seeing that the carcase size is 4 5/8" dia. With reference to the C.A.V. machines, Messrs. C.A.V. are quite satisfied that their motor of 4.625" carcase dia., will be amply capable of doing the job. Last week we received a visit from certain C.A.V. representatives, more particularly with a view to discussing with the Repair Dept. the fitting of C.A.V. starting equipment to repair cars. Their previous Chief Engineer, Mr. Midgeley, has left them and his place has been taken by a Mr. Glaser with whom we had an interesting conversation at the time | ||