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).
Technical drawing of a clutch and flywheel assembly.
| Identifier | ExFiles\Box 180\M4\M4.2\ img032 | |
| Date | 19th May 1921 guessed | |
| 5.125 2.175 .983 2.375 .984 .775 15.750 3 & 4 2.750 RAD. 1 & 6 2 & 5 CLUTCH LINING 1.625 WIDE X .250 THICK. 13.500 Ø 12.375 DIA. OF | ||