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 proposed engine modifications and testing procedures.
| Identifier | ExFiles\Box 5\4\ 04-page220 | |
| Date | 11th November 1929 guessed | |
| -2- (8) Put in hand a larger bore inlet manifold. All up to item (6) can be tested first (open exhaust) (7) & (8) can be tried later. (9) Look into the limits of the demensions on cylinder block, con. rods, etc. to find why compn. ratios vary between 4.45 and 4.90. Compare with std. 20 HP. (small bore) and Phantom. Item (8) can be tested when other things are ready by altering inlet flange on the expl. copper manifold. Hs{Lord Ernest Hives - Chair}/ACL. | ||