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).
Extract of a memo detailing new features and test plans for the 4.EX experimental chassis.
| Identifier | ExFiles\Box 78\2\ scan0017 | |
| Date | 27th February 1920 | |
| R.R. 285 A (100 T) (S.F 846 6-8-19) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2469 X 3944 Extract from Hs{Lord Ernest Hives - Chair}2/LG27.2.20. -------------------------- X.3764. RE A.EX CAR. 9------- ---------- I propose to bring 4.EX chassis (the latest experimental chassis) to West WitteringHenry Royce's home town next week. This chassis is fitted with the following new features - X.3777. 6. Double valve springs. X.3943. 7. Dunlop wheels - 3 fitted with Firestone and 3 fitted with Stanwell demountable rims. X.3944. 3895 X.3659. 8. Straight sided tyres. X.3659. This car is also to have the Earthed wiring scheme fitted but owing to modification this will not be on. We shall run the car down fitted with an ordinary 2-seater test body. MADE AT CROXLEY | ||