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).
Analysis of faulty Phantom dynamos, detailing different types and specific failure reports.
| Identifier | ExFiles\Box 70\3\ scan0328 | |
| Date | 15th November 1927 | |
| RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 461-B-12 24) MP 306975 X8783de ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.F.C. Order No.: P.D. 13. Customer's No.: X 8783 Nov. 15th 1927 Analysis of Faulty Phantom Dynamos. From our records, twenty-six faulty dynamos in all have passed through our hands. Of these, three were very early machines, ie, the first type fitted to the Phantom chassis, having a C angle of 124°. The remaining twenty-three were of the succeeding type, having a C angle of 120° and excessively high output. None of the late standard, with at 122° C angle, or modified machines have been received. Very Early Type. Dynamo | Complaint | Reported Probable Cause of Failure J.U.95. | Burning out of side lamps. | Dynamo found to be quite OK. AP. 55. | Dynamo burnt out. | Armature charred. Main fuse blown breaking dynamo-battery circuit. CN.{Mr Chamberain}35. | Solder melted | Fault on external circuit. Signed Cont'd.{John DeLooze - Company Secretary} This Sheet must be filed on completion of the work. | ||