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).
Comparison of single cylinder heads for power and detonation.
| Identifier | ExFiles\Box 155\2\ scan0248 | |
| Date | 10th September 1938 | |
| -S- Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}2/MH.{M. Huckerby}10.9.38. SINGLE CYLINDER. Complete comparison of cylinder heads as discussed for power and detonation. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||