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).
Modification to the 20/25 HP fan to reduce noise and requesting its standardization.
Identifier | ExFiles\Box 104\3\ scan0216 | |
Date | 13th July 1933 | |
X5220 To Br.{T. E. Bellringer - Repair Manager} from E/JNR.{Charles L. Jenner} E/JNR.{Charles L. Jenner}8/HP.13.7.33. c. Hs.{Lord Ernest Hives - Chair} re 20/25/HP. Fan. We send you herewith: LeC.3570 showing the fan with the trailing edges of the tips cut away to a curved shape. This has been proved to reduce the noise at high speed. Will you please have this put in hand as soon as possible, with a view to early standardization. E/JNR.{Charles L. Jenner} | ||