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 numbered components with handwritten notes indicating whether they are standard or not, and other observations.
| Identifier | ExFiles\Box 82\2\ scan0120 | |
| Date | 26th July 1934 | |
| -3- Bm/Ha.2/RW. 26.7.34. UNIT. (1) Textolite timing gears, No.1219-1221. Not standard cx{Major Len W. Cox - Advertising Manager} (2) Aerolite pistons in RR.53 alloy. Standard cx{Major Len W. Cox - Advertising Manager} (3) High compression cylinder head 6.8 C/R, 1.5 dia. inlet valve. No.1372. Increased power output, about 10 HP. over standard. Standard (4) Double valve springs. Not standard cx{Major Len W. Cox - Advertising Manager} (5) Scheme for preventing valves dropping into the cylinder, Lec.353A. Standard -(6) Magnesium bottom half. Broken by light alloy connecting rod failure, being replaced. (7) Lightened type flywheel and clutch. Back plate trimmed to remove flywheel period. 50% increased area of clutch lining. Fabric on the driven member. Not standard Borg & Beck material. cx{Major Len W. Cox - Advertising Manager} (8) Fire prevention scheme for carburettors. Modified? Chamber & Drain Pipes. Standard cx{Major Len W. Cox - Advertising Manager} (9) Dynamo Smaller. Standard cx{Major Len W. Cox - Advertising Manager} (10) Starter motor Bm/Ha. | ||