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).
Alterations to the S.S. Starter Switch, specifically replacing steel checks with brass.
| Identifier | ExFiles\Box 64\4\ scan0204 | |
| Date | 9th March 1929 | |
| To HIC. from EFC. c. to BY/RD. V7655 EFC2/LG9.3.29. S.S. STARTER SWITCH. Alteration 2783 D viz - brass checks in place of steel checks for windings and 2778 D modified carbon arm mounting - are of vital importance to the functioning of the switch and should be incorporated in the switches for 21 and 22-EX at present with us. EFC. | ||