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).
Numbered list detailing vehicle component specifications and modifications for an engine.
| Identifier | ExFiles\Box 82\3\ scan0042 | |
| Date | 26th October 1934 | |
| -2- (13) Wilmot-Breeden torsional stabilising bumper bar. (14) Sheet steel wheel arches. (15) Rear axle pinion race integral with the pinion forging, to overcome a previous failure. (16) Rear axle perfect oil seals, to overcome leakage of oil on brake shoes. ENGINE. (1) 6.9:1 cast-iron cylinder head. (2) Flywheel and clutch to N.Sch.4190. This gives increased wearing area and a lighter flywheel, which previous experience has shown gives smoother high speed engine operation. (3) Narrow pin crankshaft. (4) Narrow pin lightened drilled up connecting rods with strip Kelmit bearings, connecting rods to be drilled up for piston lubrication when starting up. (5) Aerolite pistons in RR.53. (6) Textolite timing gears, ground steel gears. (7) Double contact breaker to LEC.3323. (8) Large Helical gear oil pump, LEC.3746. (9) Geared starter motor. (10) Smaller and lighter dynamo. (11) Stellited exhaust valves on three cylinders. (12) Any magnesium parts which are available when the car is about to leave for France. (13) Small bore induction pipe. (14) SpectreCodename for Phantom III coil. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||