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).
Cylinder iron specifications, identifying the last chassis produced with chilled bores.
| Identifier | ExFiles\Box 103\2\ scan0029 | |
| Date | 27th May 1938 | |
| GWH.{George W. Hancock - Head Chateauroux} Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}1/JH.27.5.38. SPECIFICATION OF CYLINDER IRON IN PRODUCTION. Further to your query of the other day the last chassis to be turned out with chilled bores was No.U.4.WR. on 25.12.37. We can follow this up by checking the difference which shows up on bore wear on each side of that chassis number. Rm{William Robotham - Chief Engineer}/CTS{C. Trot Salt - Carburation} [Signature] 8/38 | ||