Sending two blueprints for an experimental Hawk Engine Piston set.
| Identifier | ExFiles\Box 41\1\ Scan067 | |
| Date | 30th December 1919 | |
| R.R. 236 a 200 T) (S F 673. 12.5 100 G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 1376. RHO from DA {Bernard Day - Chassis Design} /STT C. to Ck. {Mr Clark} X.3743. DA {Bernard Day - Chassis Design} /STT15/EF30.12.19 Hawk(Aero Engine) Engine Piston - Section 403 - X 2275 Please receive herewith two Blue Prints of the following :- N. 2962 Gudgeon Pin N. 2943 Hammered Piston Ring N. 2944 Flexible Split Piston. For making one set experimental for the Hawk(Aero Engine) Northcliffe DA {Bernard Day - Chassis Design} /STT. | ||
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).