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).
Request for an experimental fan to be built with staggered blades for a 20/25 HP engine.
| Identifier | ExFiles\Box 104\3\ scan0223 | |
| Date | 3rd October 1934 | |
| x5220 RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Std. Hs{Lord Ernest Hives - Chair}/Std.2/MA.3.10.34. Will you please have an experimental fan built up, precisely similar to the present standard 20/25 HP. fan, except that its blades are to be staggered so that the angles between the blades are alternately 57º and 123º. If this fan is successful, we hope to fit it to 21.G.IV when this car goes to France next. Hs{Lord Ernest Hives - Chair}/Std. | ||