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).
Standardising the 40/50 HP Chassis fan with Duralumin flanges and blades following failures of the steel version.
| Identifier | ExFiles\Box 14\7\ Scan002 | |
| Date | 23th November 1926 | |
| BY/CS. c. to Hs.{Lord Ernest Hives - Chair} X7220 BY/Cgh{W Clough}33/G.23.11.26. 40/50 HP. CHASSIS - FAN The standardisation sheet X.7220 of the 23.9.26 has been signed up in connection with the fan with Duralumin flanges and blades. In view of the failures we have had with the present steel flanges BY.{R.W. Bailey - Chief Engineer} considers that we should only introduce the Duralumin blades at the moment, therefore on the next series will you please arrange for material to be ordered accordingly. [Stamp: RECEIVED Hs{Lord Ernest Hives - Chair} NOV 24 1926] BY/Cgh.{W Clough} | ||