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).
Confirming that only one oil cooler, a Serck No.D.94906, has been tested in the last twelve months.
| Identifier | ExFiles\Box 131\5\ scan0134 | |
| Date | 18th July 1940 | |
| 111H, LES/FS.{F. Steele} from Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}5/JMS.18.7.40. Re your memos Les/FS.{F. Steele}12/B.15.7.40. and Les/FS.{F. Steele}2/B.21.6.40. We have only tested one oil cooler during the last twelve months, and this was a Serck No.D.94906. No other cooler has been submitted for test during this period. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} | ||