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 14 points for consideration regarding the clutch and flywheel, followed by test conditions.
| Identifier | ExFiles\Box 154a\3\ scan0216 | |
| Date | 27th March 1936 guessed | |
| CLUTCH & FLYWHEEL. (1) Life. (2) High speed durability. (3) Rigidity of operation. (4) Freedom from pedal movement effected with increasing speed. (5) Effect of inertia on slow running. (6) Effect of centre plate on synchromesh. (7) Pedal pressure. (8) Wear available before pedal hits boards. (9) Silence, and method of lubricating thrust race. (10) Clearance between starter teeth and clutch housing to avoid whistle. (11) Effect on engine smoothness. (12) Effect of spring driven centre on rattles in the transmission. (13) Effect of the engine mounting on the clutch take up. (14) Are engine vibrations transmitted to the inside of the car by the pedal touching the boards ? 10,000 miles London traffic and English hills. 5,000 miles Continental running including Alps. 100 hours on the test bed. | ||