Specifications for a starter motor's pinion, flywheel, and epicyclic reduction.
| Identifier | WestWitteringFiles\J\February1923\ Scan9 | |
| Date | 15th February 1923 | |
| ORIGINAL SECRET TO HS. {Lord Ernest Hives - Chair} FROM E. {Mr Elliott - Chief Engineer} c. to OJ. E. {Mr Elliott - Chief Engineer} A. {Mr Adams} C. E1/M15.2.23. 9666 X.4901 - STARTER MOTOR. Further to our E6/M91222, in reply to EFC {E. Fowler Clarke - Electrical Engineer} 5/T301122, we expect to have a 2" starter pinion engaging with a 16" fly-wheel - 8 to 1 - driven by the motor through an epicyclic reduction of 4 or 5 to 1. The exact figure for the latter will shortly be settled in designing the gear. Would you kindly pass this information on E. {Mr Elliott - Chief Engineer} | ||
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).