Potential material error for the Goshawk II clutch pressure plate.
| Identifier | ExFiles\Box 74\2\ scan0324 | |
| Date | 25th February 1921 | |
| To DA. {Bernard Day - Chassis Design} from R. {Sir Henry Royce} Copy to C.J. " " HOR. " " HS. {Lord Ernest Hives - Chair} " " SY. " " EPE. X4244 RE "GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) II" - CLUTCH. With reference to the clutch for "Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) II", we believe that an error has arisen that the pressure plate was to be made of wrought steel drop forging instead of a casting of iron, semi-steel, brass, bronze, or aluminium-bronze, using the least costly material which is found to give satisfaction. R. {Sir Henry Royce} [Handwritten top centre, crossed out]: X4244 [Handwritten top right]: Hs {Lord Ernest Hives - Chair} X [Stamped top right]: RECEIVED [with clock face stamp] [Stamped bottom centre]: D 25 FEB 1921 RECEIVED [with clock face stamp] | ||
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).