Proposing modifications to Goshawk 11 valves following a burnt valve incident.
| Identifier | WestWitteringFiles\J\December1922\ Scan18 | |
| Date | 9th December 1922 | |
| R. {Sir Henry Royce} R. {Sir Henry Royce} 235B (100 T) (S.H. 798. 10-12-20) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2948 TO HS. {Lord Ernest Hives - Chair} FROM R. {Sir Henry Royce} c.c. to CJ. WOR. {Arthur Wormald - General Works Manager} c.c. to BY. {R.W. Bailey - Chief Engineer} EP. {G. Eric Platford - Chief Quality Engineer} ORIGINAL R1/M9.12.22. GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 11. VALVES. X4226 RECEIVED With reference to the recent burnt valve we have had on 7.Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)), I think we might try the following modifications with a view to reducing the working temperature of the valves:- (1) Wider seat. (2) Different angle of seat. The present angle is 15° - we might try 30° and 40°. (3) Larger spindle. (4) Good valves at present for trying different material, i.e. real Firths Stainless, R. {Sir Henry Royce} and any other. | ||
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).