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).
Design adjustments and specifications for chassis EAC.7 and EAC.8.
| Identifier | ExFiles\Box 65a\1\ scan0011 | |
| Date | 18th November 1925 | |
| X. 7770 R1/M18.11.25. To BY.{R.W. Bailey - Chief Engineer} & HS.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. to CJ. BJ. c. to DA.{Bernard Day - Chassis Design} AJS. --- EAC. 8. Naturally this would not be kept back for the alum. cyl. block and head. These items would be put on when they were ready. EAC. 7. Regarding EAC.7. the particulars of this chassis are nearly completed. there are no drastic changes in its design, but a few adjustments of length are required. This chassis will require the silent sequence starter. It should also, when convenient, include the lighter engine, and some further saving in the weight of the clutch and gearbox. Regarding the radiator for this chassis we have seen a way through of fitting a better cross member under this radiator to carry the front end of the engine etc. You will find on this chassis we have arranged the frame lower than the present standard without altering the usual road clearance. The radiator goes down with the frame so as not to alter the driver's view. DA.{Bernard Day - Chassis Design} will get out the instruct- ions for this radiator, which is not altered in appearance, but has some definite alterations to the bottom tank. This chassis can in the first place have any front axle fitted to it, but it is intended to push forward the new and lighter axle without tubular ends. It should have the RR. double acting cyl. type of shock dampers, and it would be an opportunity of testing an 18" steering wheel with a smaller rim, and the top spoke deleted, and the zionite rim carried on a steel tube, the tube being either jointless, or the joint formed on the third or bottom spoke. This chassis should have fitted to it the Mechanic's joint on the propeller tube. R.{Sir Henry Royce} | ||