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).
List of updates for the flywheel, clutch, engine coupling, and starter components.
| Identifier | ExFiles\Box 71\3\ scan0035 | |
| Date | 9th December 1925 | |
| .5. RHC{R. H. Coverley - Production Engineer}2/BE. 9.12.25. X.8300 - Flywheel & Clutch 1. Latest Lightened Clutch to LeC 2067 & L.O.P.G.73748. 2. Simplified Clutch Stop to LeC 2080 & L.O.P.G.74046 otherwise to L.O.P. G.73474. X.8305 - Engine Coupling New Standard Fabric Coupling to L.O.P. G.73570. X.8625 - Self-Starter Gear Existing S.S.Gear to L.O.P. G.73417. - Starting Handle To L.O.P. E.72750. RHC.{R. H. Coverley - Production Engineer} | ||