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).
Phantom II engine mounting, comparing its behavior to the 20/25 model regarding torque reaction.
| Identifier | ExFiles\Box 14\5\ Scan303 | |
| Date | 27th September 1934 | |
| X7005 To E.{Mr Elliott - Chief Engineer} c. to By.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}9/KW.27.9.34. Phantom II Engine Mounting. G.W.H. Herewith is a report we have received from We have been trying to parallel his tests here, there is no doubt that the Phantom behaves somewhat differently from the 20/25. As an example, on the 20/25 we cannot use anything but the lightest torque reaction load with the Terraplane mounting without spoiling the engine smoothness, on the Phantom this does not appear to be so. When Hancock returns we shall be able to go over the whole matter with him. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||