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).
Statistical report on dynamo complaints, categorised by type (total, noisy, low output) and car model, over a six-month period.
| Identifier | ExFiles\Box 130\1\ scan0112 | |
| Date | 31th December 1933 guessed | |
| - 5 - TOTAL DYNAMO COMPLAINTS. 20 HP* 25 HP. PH.I. PH.II. TOTAL. GRAND TOTAL. REMARKS. December Quarter. C.C. - 21 1 2 24) V.P. - 4 - - 4) 28 Three rate charge scheme is now standard on 20/25 HP. cars and should reduce dynamo complaints. Exceptional cases always arise where dynamo output is unsuitable. Voltage control on 40/50 HP. should be great help. Previous Quarter. C.C. - 23 - 3 26) V.P. - 2 - - 2) 28 Six Months. - 50 1 5 56 56 DYNAMO NOISY. December Quarter. C.C. - 12 1 1 14) V.P. - 4 - - 4) 18 These are mainly noisy ball races, due apparently, to lack of lubrication. Previous Quarter. C.C. - 19 - 3 22) V.P. - 2 - - 2) 24 Six Months. - 37 1 4 42 42 DYNAMO LOW OUTPUT. December Quarter. C.C. - 9 - 1 10) V.P. - - - - -) 10 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 Hd.{Mr Hayward/Mr Huddy}241. Previous Quarter. C.C. - 4 - - 4) V.P. - - - - -) 4 Six Months. - 13 - 1 14 14 | ||