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).
Letter to Chloride Elec. Storage Co. Ltd. enclosing volt-ampere characteristic curves for a Lucas E.575 dynamo.
| Identifier | ExFiles\Box 36\4\ scan 247 | |
| Date | 8th March 1922 | |
| X.30146 EFC1/T. 8th March, 1922. The Chloride Elec. Storage Co. Ltd., Clifton Junction, Nr. Manchester. For the attention of Mr. McKinnon. Dear Sirs, We now have pleasure in sending to you, as promised, a print of volt-ampere characteristic curves, at various speeds,(indicated by the figures against the curve) of the Lucas E.575 dynamo which is the present standard machine on our 40/50 chassis. There is also a dotted line on this diagram representing the assumed volt-ampere characteristic of a fully charged 12 volt battery, i.e. one whose open circuit voltage is 13.6, rising to 15.1 volts at a charging rate of 12 amperes. Yours faithfully, | ||