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).
Examination and test report for Dynamo No. 371 from Chassis GRK. 78, detailing faults found and its return.
| Identifier | ExFiles\Box 57\2\ Scan088 | |
| Date | 14th June 1927 | |
| Y5283do To EY. from EFC/RJA. c. Mr. Brock. EFC2/T14.6.27. (EFC. absent) DYNAMO NO. 371 EX CHASSIS GRK. 78. We have duly examined and tested this dynamo. It is a 29 commutator segment machine. We find the control brush to be some 7° too far retarded which would result in an excessive output and account for the throwing of the solder. There is evidence of bad sparking on the negative and control brushes. The control brush holder clearance from the commutator should be reduced. We herewith return the machine to EY. EFC. | ||