Solution for propeller shaft vibration for the 14.B.V. model.
| Identifier | ExFiles\Box 97\3\ scan0204 | |
| Date | 28th July 1939 | |
| 400g To Rm {William Robotham - Chief Engineer} /IMW. {Ivan M. Waller - Head of Chateauroux} from Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} Hotel de France, Chateauroux(French test region), Indre, France. Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} 5/MH. {M. Huckerby} 28.7.39. 14.B.V. We shall shortly be in a position to send you a complete cure for the propellor shaft vibration which Mx. {John H Maddocks - Chief Proving Officer} has developed on 10.B.V. It consists of mounting the frame holding the centre bearing to the cross on a rubber pedestal instead of fixing it th the sides with the present form of bolts. Rm {William Robotham - Chief Engineer} /Gry. {Shadwell Grylls} | ||
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).