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).
Instructions for the release and modification of blueprints for the Goshawk 11 rear axle centre gearbox.
| Identifier | ExFiles\Box 49\1\ Scan305 | |
| Date | 25th April 1921 | |
| R.R. 235a (100 F) (S.H. 793. 10-12-20) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2548 X4256 To EY. from Da. {Bernard Day - Chassis Design} c. to Hs. {Lord Ernest Hives - Chair} c. to TB (1 print) c. to RHC. {R. H. Coverley - Production Engineer} (1 print) DA {Bernard Day - Chassis Design} /STT1/CB25.4.21. X.4247 X.4255 X.4256 RE REAR AXLE CENTRE GEAR BOX. Please receive herewith three blue prints of "N" scheme 750 - Rear Axle Centre Gear Box - Goshawk 11. This has now been released by a telegram received today, from Mr. Day "INSTRUCT BACK AXLE CENTRE GEAR BOX WITH 15/60 GEAR GOSHAWK 11". Please note that the taper portion of planet pinion of back axle should be made to suit LeC.1382 which is a drawing of the propeller shaft coupling. Please put details in hand. DA {Bernard Day - Chassis Design} /STT. | ||