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).
Note regarding a lightened flywheel with a stiffened clutch pressure plate for the Phantom III.
| Identifier | ExFiles\Box 93\3\ scan0081 | |
| Date | 30th January 1936 | |
| x312 [signature] SMITH BY: c. E.Hs.{Lord Ernest Hives - Chair} Ba. RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Fm. E/HDY.{William Hardy}2/HP.30.1.36. Lightened Flywheel with Stiffened Clutch Pressure Plate - Phantom III. N.Sch.4747 herewith shows the above combination. The inertia has been reduced as nearly as possible to that of the original clutch flywheel, to N.Sch.4229, but is still 10% more. The increased inertia flywheel to N.Sch.4571 is 90% more than the original. E/HDY.{William Hardy} N.Sch.4747 herewith. | ||