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).
Comparison table of experiments conducted on sequence starters.
| Identifier | ExFiles\Box 64\3\ scan0098 | |
| Date | 9th November 1926 | |
| X7650 9.11.26. SEQUENCE STARTER EXPERIMENTS. 14EX | 9-EX. (EAC.1). | EAC.VII chassis. (2 sets) | Rig. | |---|---|---| | 20° spiral with rubber buffer, scheme and pinion operated switch. | 20° spiral without rubber buffer scheme, but with pinion operated switch. Tried & found unsatisfactory. | 34°52' and 20° spiral with pinion operated switch. 5° spiral with actuator box operated switch. 20° and 5° only with alternative of rubber buffer scheme. | EFC. | ||