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).
Extract from C.W. Hancock's report on the dynamo output and condition on chassis 24-EX at 6,000 miles.
| Identifier | ExFiles\Box 60\1\ Scan246 | |
| Date | 20th July 1930 | |
| X6006 Extract from C.W.Hancock's report dated 20.7.30. on 24-EX at 6,000 miles. X6006 X6016 The output of the dynamo is as follows :- Half charge : 20 M.P.H. Cuts in 30 M.P.H. 5.5 amps. 40 M.P.H. 8.0 amps. 50 M.P.H. 8.5 amps. 60 M.P.H. 8.5 amps. 70 M.P.H. 8.5 amps. 75 M.P.H. 7.5 amps. With head, side, tale and facia lamps on :- 20 M.P.H. 7.5amps. discharge 30 M.P.H. 2.0 amps. " 40 M.P.H. 2.0 amps. " 50 M.P.H. 3.0 amps. " 60 M.P.H. 3.5 amps. " 70 M.P.H. 4.0 amps. " The dynamo brushes have, during the latter part of the mileage, been rather noisy. A light clicking sound is heard which gives an impression that the commutator segments have become uneven. | ||