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).
Blueprint showing the design for a 25 HP Double Flywheel Bearing.
| Identifier | ExFiles\Box 181\M13\M13.2\ img042 | |
| Date | 20th April 1931 guessed | |
| SPIGOTTED TO FLYWHEEL ASSEMBLY Ex 5810 2.675 2.850 1.150 25 HP DOUBLE FLYWHEEL BEARING | ||