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).
Proposal for using stiffer road springs on the Phantom II sports car.
| Identifier | ExFiles\Box 16\7\ Scan194 | |
| Date | 9th October 1939 | |
| X 7410 To Da.{Bernard Day - Chassis Design} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. By.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}5/ADL9.10.39. PHANTOM II SPORTS CAR REAR SPRINGS. When discussing the Phantom II sports car proposal, R.{Sir Henry Royce} agreed that we should use stiffer type road springs on the lines of those fitted to 15, 16 & 17-EX cars. The advantages to be gained from such springs are (1) Lower car, particularly when the rear seats are empty. (2) Less spring movement resulting in better car control and less work for the shock absorbers. (3) Less metal required in springs. The rear spring that we suggest is as follows: Free Camber. 5.060" Pos. Normal Loaded Camber. 1.130" Neg. Max. Bump. 4.850" Neg. This will make the car with four passengers 1.025" lower than if standard springs were fitted. Additionally the car will be a further .3" lower than standard when the rear is being driven about unloaded, as will usually be the case making a total of 1.325" drop in overall height. For the front springs we recommend : Free Camber 2.00" Pos. Normal Loaded Camber .2" Neg. Max. bump 2.1" Neg. The buffer is at present 1.875" deep. We think | ||