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).
Outlining modifications and required parts for the 10-EX experimental car.
| Identifier | ExFiles\Box 70\1\ scan0153 | |
| Date | 18th November 1925 | |
| X8724 To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}1/LG18.11.25. 10-EX CAR. This car is now ready to have the 16-tooth axle replaced when convenient - the exhaust cutout also requires attention and the exhaust baffle in the down-pipe should be re-set as it prevents the throttle opening fully when its return spring is fitted, In addition, will you please keep in mind the following items which you have in hand for us :- (1) 1-G-1 torque arm. (2) Drilling and studding disc wheels for balancing. (3) Vertical pivot axle. (4) Discovering, if possible, suitable gear pump to use a water pump for steam cooling; max. delivery required will be 1 gallon per minute. (5) Servo springs 1½ and twice the strength of the present one inserted between the servo and plates. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer} | ||