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 to bring the 4.EX experimental chassis for testing, detailing its new features.
| Identifier | ExFiles\Box 77\3\ scan0216 | |
| Date | 27th February 1920 | |
| X3Y54a. To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. c. to Bn.{W.O. Bentley / Mr Barrington} Hs{Lord Ernest Hives - Chair}2/LG27.2.20. X 3Y64. RE 4.EX CAR. 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 - X8Y54? 1. Thermostat Control. X.3563 2. Cast Iron Pistons - split type. X.3630 3. Magneto to fixed at an angle. X.3699 4. Serrated Magneto Drive. X.3Y33 5. Finned tappets. X.3444 6. Double valve springs. X.3943 7. Dunlop wheels - 3 fitted with Firestone and 3 fitted with Stanweld demountable rims. X.3895 8. Straight sided tyres. X3659 This car is also to have the Earther Wiring Scheme fitted but owing to modifications this will not be on. We shall run the car down fitted with an ordinary 2-seater test body. Hs.{Lord Ernest Hives - Chair} | ||