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 15 improvements to be tested on an experimental car in France.
| Identifier | ExFiles\Box 65a\1\ scan0049 | |
| Date | 2nd July 1926 | |
| 47770 To Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. to BJ. LHS.{Lord Herbert Scott} c. to BY.{R.W. Bailey - Chief Engineer} FN. R3/M2.7.26. 7-EX CAR. X.8992 X.8770 X.7770 The following recent improvements are for testing in France next Winter :- (1) Correct auto:advance - metal piston. (2) Hydraulic shock dampers - 80/40 or 100/50 as found best. (3) Pistons 9 (unimportant) single bolt pedestal. (4) Valves that will least cause self ignition. (5) Alum. carb. with rbonze ring on air port. (6) Red light on thermometer for bonnet. (7) Steering - 2000 lbs.per in. buffer springs, and all ball joints spring loaded. (8) Light axle - front. (9) New tyres - semi-balloon. (10) 2 level, 2 filter, back tank, and white faced gauge. (11) Std. battery. P.&.R. or mixed half and half. (12) Revised oil relief valves. (13) Duralumin throttle disc. (14) Cutout stop and latest mechanism. (15) Switchbox altered to B. & M.{Mr Moon / Mr Moore} with O.{Mr Oldham} charge etc. Separate switch to cut out magneto. ------- This car will do for me until we get lighter Phantom engine and chassis, EAL.7 & 9., when I shall hope to have a new body, perhaps of a different type. R.{Sir Henry Royce} | ||