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).
Quarterly report analyzing dynamo complaints, failures, noise, and low output by vehicle model.
| Identifier | ExFiles\Box 130\1\ scan0057 | |
| Date | 30th June 1933 guessed | |
| - 5 - 20 HP. 25 HP. Ph.I. Ph.I. TOTAL. GRAND TOTAL. REMARKS. TOTAL DYNAMO COMPLAINTS. June Quarter. C.C. 1 20 - 9 30) V.P. - 3 - - 3) 33 Three rate charge scheme is now standard on 20/25 HP. cars and should reduce dynamo complaints. Previous Quarter. C.C. - 17 3 3 23) V.P. - 1 - 1 2) 25 Six Months. 1 41 3 13 58 58 DYNAMO FAILURES. June Quarter. C.C. - 5 - 4 9) V.P. - 1 - - 1) 10 Complete failure of dynamos is generally due to some external fault in installation such as open circuit. Previous Quarter. C.C. - 5 3 1 9) V.P. - - - - -) 9 Six Months. - 11 3 5 19 19 DYNAMO NOISY. June Quarter. C.C. 1 8 - 5 14) V.P. - 2 - - 2) 16 Minor adjustments to brush gear usually overcome these troubles. Previous Quarter. C.C. - 1 - 2 3) V.P. - 1 - 1 2) 5 Six Months. 1 12 - 8 21 21 DYNAMO LOW OUTPUT. June Quarter. C.C. - 7 - - 7) V.P. - - - - -) 7 Dynamos giving better performance at speed are now available for early cars. Lower field resistance also available for later cars with half charge scheme. See Depot Sheet No. Ed.{J. L. Edwards}241. Previous Quarter. C.C. - 11 - - 11) V.P. - - - - -) 11 Six Months. - 18 - - 18 18 | ||