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).
Summary report on dynamo complaints, failures, noise, and low output, broken down by vehicle model and time period.
| Identifier | ExFiles\Box 47\3\ Scan428 | |
| Date | 1st March 1932 guessed | |
| -6- 20 HP. 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS. TOTAL DYNAMO COMPLAINTS. March Quarter. C.C. 2 11 1 7 21 } 24 W.P. - - 1 2 3 } Half Charge Scheme is now standardised. Previous " C.C. 3 16 - 13 32 } 35 W.P. 1 - - 2 3 } Six months. 6 27 2 24 59 59 DYNAMO FAILURES. March Quarter. C.C. 1 4 - 3 8 } 9 W.P. - - 1 1 1 } Minor adjustments to brush gear usually overcomes these troubles. Previous " C.C. - 5 - 2 7 } 7 W.P. - - - - } Six months. 1 9 1 5 16 16 DYNAMO NOISY. March Quarter. C.C. 1 4 - 1 6 } 8 W.P. - - - 2 2 } Minor adjustments to brush gear usually overcomes these troubles. Previous " C.C. 3 8 - 7 18 } 22 W.P. 1 - - 3 4 } Six months. 5 12 - 13 30 30 DYNAMO LOW OUTPUT. March Quarter. C.C. - 3 1 3 7 } 7 W.P. - - - - } The dynamos giving higher output are available in cases of complaints. Previous " C.C. - 3 - 3 6 } 6 W.P. - - - - } Six months. - 6 1 6 13 13 | ||