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).
Car body stiffness, vibration isolation, and proposals for experimental construction.
| Identifier | ExFiles\Box 41\4\ Scan188 | |
| Date | 1st October 1923 guessed | |
| contd:- -2- beam is 9 times that of the wooden runner as is now used. Should however this beam be not stiff enough we can easily increase its stiffness 100% with only slight increase in weight. By attaching the body rigidly only at the extreme rear we do our best to relieve it of all engine vibrations, which is an advantage over the Daimler suspension. The scuttle is entirely insulated from the dash and it will be necessary/to separate the aft valance from that portion in p front of the dash. We would like to try this experiment on a car preferably a cabriolet, as soon as possible and would be glad to know whether you have any future car to be constructed for trial or other purpose, into which we could build these parts. We believe Barkers would be quite willing to do the work from what we gathered on our last visit. Should the first experiment not give us all we require we have many others to try, such as stiffer channels for the runners, tiebars to the runners, an additional flexible support at the centre of the rear door, and at the dash. Should the sideways register of the body be inadequate we can fit rubber pads between the frame and the stiffener at the dash end. We feel that if the body can be isolated and given a strength of its own we shall gain by having lighter and quieter bodies, whilst the coachbuilders will be able to lift bodies and chassis without the danger of destroying them. A print of N.sch.1461 will be sent to you from Derby. DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} | ||