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).
The lamp bulb specifications for car 24-EX and reporting a subsequent dynamo failure.
| Identifier | ExFiles\Box 166\4\ img072 | |
| Date | 19th August 1930 | |
| X6089. To E.{Mr Elliott - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} Re. Improved Dynamo Arrangement. In reply to your memo El/Ml.8.30. We herewith give you the particulars of the lamp bulbs in use on 24-EX. :- NEAR SIDE HEAD 5 Amps. Osram 12v 60w OFF SIDE HEAD 5 Amps. Osram 12v 60w NEAR SIDE SIDE .05 Amps. Mazda 12v 6w OFF SIDE SIDE .05 Amps. Mazda 12v 6w TAIL .04 Amps. Osram 16v 8w Facia (2) 1.2 Amps. British Midget 12v 3-4w The dynamo on the car entirely failed during the 1000 miles run by Sales. We examined the brushes upon the car returning to Derby and found the control brush sticking. A considerable burning of the commutator has taken place and looks as if a fault has developed in the winding. The dynamo has been handed over to EFC. for examination. Hs{Lord Ernest Hives - Chair}/G.W.Hancock. | ||