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).
List of six required modifications and checks to be carried out on car 4.B.50.
| Identifier | ExFiles\Box 111\4\ scan0204 | |
| Date | 10th May 1940 | |
| 800a HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies}6/JMS.10.5.40. c. HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} 4.B.50. Will you please have the following work carried out on the above car. 1. Engine damper to be changed to Studebaker type, built up with 30/35 durometer rubbers. 2. Fit small exhaust expansion boxes to the rear silencer, similar to those fitted to 11.B.9. 3. Fit a modified front engine mounting with flat feet as on 11.B.9., strengthened up as much as possible. 4. Check pivots for oil, reported dry, with excessive oil leaks at the centre steering arm, and ball ends. 5. Measure castor angle and length of pendulum lever. 6. Clearances to be increased to .003 sideways and .005 on dia. rear expander units, and on the rear brake shoe links, as shown on Rm.{William Robotham - Chief Engineer}611. Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} | ||