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).
To hold production of Wraith cylinder heads due to cracked valve seats.
| Identifier | ExFiles\Box 8\6\ 06-page40 | |
| Date | 16th September 1938 | |
| [REDACTED] 619 Piles BY.2/G.16.9.38. c. Rm.{William Robotham - Chief Engineer} ---------------- SWDL{Len H. Swindell} WRAITH - CYLINDER HEAD. ---------------------- Owing to the cracked valve seats found on Mx{John H Maddocks - Chief Proving Officer}'s car, I want to hold up casting and machining of existing cylinder heads, other than the immediate needs for production. This matter is being investigated, and it is hoped to find a solution of the trouble in the near future. BY.{R.W. Bailey - Chief Engineer} | ||