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).
Specification sheet for a rear damper, page 2.
| Identifier | ExFiles\Box 151\3\ scan0388 | |
| Date | 23th February 1940 | |
| -2- 23/2/40. R.R. Rear Damper (cont'd) Interlever = 1.750 Piston dia. = 1.750 Piston area = 2.400 Sq. in. Displacement per inch of wheel movement. 0.420 cu. ins. Rm {William Robotham - Chief Engineer} /FJH. {Fred J. Hardy - Chief Dev. Engineer} | ||