Performance issues and corrective actions for a 78-Goshawk III car.
| Identifier | WestWitteringFiles\N\2July1925-September1925\ Scan111 | |
| Date | 30th September 1925 | |
| R.R. 235A (100 T) (S.H. 159, 11-8-20) G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 2800 TO HS. {Lord Ernest Hives - Chair} FROM R. {Sir Henry Royce} ORIGINAL R2/M:30.9.25. 9 78-GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 111. X5770 X5840 This car was never quite right, because it always behaved the same. It has been corrected by adjusting the clearance of the 6 rear valves which were too close, and spoiled the slow running, so inducing the low speed jet to be set too strong. You will remember I thought it had a bad induction pipe. The high speed jet has now been strengthened (relatively.) Amongst other faults the consumption was bad. I was very disappointed with its behaviour. It is now splendid. It may be stretching valves, but I am not sure the report from France is exactly correct. R. {Sir Henry Royce} RECEIVED 1 OCT 1925 | ||
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).