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).
Proposed modification to a chassis to cure radiator shimmy, including a sketch.
| Identifier | ExFiles\Box 15\1\ Scan221 | |
| Date | 11th February 1930 guessed | |
| -2- pillars and the dash flanges to act as dampers. We prefer this scheme to the one suggested by DA.{Bernard Day - Chassis Design} for the following reasons - (1) It is easier to fit into an existing chassis. (2) The support is in a better place for the coach-work. (3) A large amount of torsional movement can be permitted between the scuttle and the dash without it being seen by the driver, the pivot point being close to the top bonnet hinge. Sketch of suggestion 2. [DIAGRAM LABELS] BOOT CUT AUTOVAC OFF FOR EXPERIMENT RUBBER We wish you to go ahead with the testing of this as soon as possible as we believe that, if the removal of the body torsional stiffness from that of the chassis is a cure for the radiator shimmy, this would be the best scheme. We also suggest that it is very desirable that at the very earliest date we should get conclusive proof of the original results obtained by the three point body suspension experiment. We believe that car had a "cross in the frame". Suggestion No. 2 is a similar experiment which could be carried out and fitted to a standard car, in fact, if it were found to be successful, we do not see any reason why we could not use it for complaint cases. We do not think you need a design to make the first test, but on hearing from you we will make one if you need it. EV.{Ivan Evernden - coachwork} | ||