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).
Blueprint illustrating sludge build-up and choking issues in engine passages.
| Identifier | ExFiles\Box 131\4\ scan0199 | |
| Date | 10th May 1937 guessed | |
| INCLINED TO CHOKE. CHOKED UP WITH SLUDGE. | ||