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 modifications for a Phantom car destined for France before its 10,000-mile test.
| Identifier | ExFiles\Box 65a\1\ scan0333 | |
| Date | 1st May 1928 | |
| Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. to BJ. Wor.{Arthur Wormald - General Works Manager} BY.{R.W. Bailey - Chief Engineer} c. to E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} C. 47770 RL/M1.5.28. PHANTOM CAR FOR FRANCE. X.8940c X.4663 X.7770 The above should have the following modifications before leaving for its 10,000 miles test : (1) HAND BRAKES Improved side by side, saving by this and other means 47 lbs. (2) STEERING 15/1 .720 plus 9 1/4" pendulum lever, (same as F.2. conversion). (3) PEDALS FURTHER FORWARD. Economising body space, cancelling B. steering, lower roof. (4) SHORTER ROAD WHEEL HUBS. Better for traffic, saving in weight. (5) COOLER EXHAUST VALVES. Thicker heads. (6) COMPRESSION RATIO. Increased from 4 1/4 to 4 1/2 or 4 3/4 - say 4.6. Necessary for performance and cool pipes and valves. (7) PISTONS. Single bolt, pedestal, with external surface scraper or perfect circle - LeC.2554. (8) OVERHEAD SLOT INDUCTION PIPE. 20 to 30 lbs. - say 25. Drilled to LeC.2545/2553. (9) OVERHEAD SLOT INDUCTION PIPE. 2" throttle, hot water heating. LeC.2465 modified. (10) RADIATOR MODIFICATION. More water space, slightly shorter tubes, and saving in weight. (11) CRANKSHAFT OVAL WEBS. Stiffest crank ever fitted to Phantom, slipper drive made. contd :- | ||