Blueprints for the Goshawk II universal joint behind the gearbox.
| Identifier | ExFiles\Box 105\2\ scan0071 | |
| Date | 10th March 1921 | |
| X.4254 1/ Re-by from DA. {Bernard Day - Chassis Design} c. to HMG (1 print). c. to FP. {F. Potts} c. to HS. {Lord Ernest Hives - Chair} DA {Bernard Day - Chassis Design} 6/CB9-3-21. X.4254 RE GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) II - UNIVERSAL JOINT BEHIND GEARBOX. X.4348 Please receive herewith three blue prints of Loc.1363. Please put details in hand. H8 MAR 10 1921 DA. {Bernard Day - Chassis Design} RECEIVED | ||
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).