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).
Two silent fan designs, LeC.3747 and LeC.3748, for trial on a 10,000 miles test car.
| Identifier | ExFiles\Box 14\7\ Scan056 | |
| Date | 1st January 1934 | |
| X 7220 - Wyman file To BY.{R.W. Bailey - Chief Engineer} from E/JNR.{Charles L. Jenner} c. Hs.{Lord Ernest Hives - Chair} NHC re P.2. Silent Fan. We send you herewith two designs of Fan - LeC.3747 and LeC.3748. Both of these fans should be made and tried and the better one of the two is to be put on the next 10,000 miles test car. E/JNR.{Charles L. Jenner}2/HP.1.1.34. E/JNR.{Charles L. Jenner} | ||