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).
The second test of a vehicle, detailing observations on torque reaction, booms, and steering stability.
| Identifier | ExFiles\Box 11\3\ 03-page392 | |
| Date | 4th July 1931 guessed | |
| (2) 2nd Test. Conditions. Torque reaction dampers had all friction removed. Torque reaction and its effect on front wings. This came on at 8 MPH, maximum at 10 MPH, finished at 11 MPH. The reaction under these conditions caused more amplitude in the movement of the side lamps. The gear lever period was considerably worse, it started at 7 MPH, maximum 9 and finished at 11 MPH. The value we should put down at 60%. There was also a pronounced rattle at these speeds from the engine due to slackness. Booms. In Front Seats. These were not considered to be at all pronounced. There was a period which started at 18 MPH, maximum 25, finished at 30. All windows were closed and partition window closed. A period was noticed at 40 MPH on the retard. In Rear Seats There was no definite period, we considered it to be very good. Jellying of the front wings was considerable. There were violent periods throughout the range of speed. The Steering was not affected in regard to stability. The oscillation of the steering wheel was more rapid, but of no greater intensity. | ||