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).
Instruction sheet comparing the electrical and mechanical performance of different Smith Dynamos models.
| Identifier | ExFiles\Box 3\5\ 05-page258 | |
| Date | 21th May 1920 | |
| RR.500(12/18) 150P 24-1-19. H&P 7649/12 X.295 90968 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr. Clark 21/5/20 Order No: - Customer's No. 71338. Re: X 275 Smith Dynamos 2D(1) & 2D(2). These dynamos are not so good electrically as the Smith 2D(10) dynamo. As they have a very poor out put when fully hot. They are a good job mechanically & less noisy than an average C.S.75. (clutch is less noisy on bench test) The 2D(1) machines is (Contd.) This Sheet must be filed on completion of the work. | ||