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).
Secret and urgent memo regarding the design improvements of a larger slipper flywheel for the Spectre model.
| Identifier | ExFiles\Box 93\3\ scan0052 | |
| Date | 31th May 1935 | |
| GRY{Shadwell Grylls} X312 To DY.{F R Danby} from E/Lid.{A. J. Lidsey} c. Wor.{Arthur Wormald - General Works Manager} Hs.{Lord Ernest Hives - Chair} RHO. SECRET AND URGENT. E/Lid.{A. J. Lidsey}2/HP.31.5.35. SpectreCodename for Phantom III - Larger Slipper Flywheel. We send you herewith LeC.4475 - Larger Slipper Flywheel. As compared with the original design to LeC. 3794 this design provides for:- (1) 66% increased inertia. (2) 57% increased area of friction lining. (3) Improved lubrication to the friction linings. This is required for the first 20 chassis. E/Lid.{A. J. Lidsey} | ||