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).
Graph showing average cylinder wear and the number of cylinder blocks from various series.
| Identifier | ExFiles\Box 132\4\ scan0132 | |
| Date | 26th April 1938 | |
| 1124 SHOWING THE NUMBER OF CYLINDER BLOCKS FROM EACH SERIES AS A PERCENTAGE OF THE TOTAL NUMBER OF CYLINDER BLOCKS MEASURED BETWEEN 1st JAN 1938 & 31st MAR 38 GRAPH SHOWING AVERAGE CYLINDER WEAR PER 30,000 MILES ON CYLINDER BLOCKS MEASURED DURING JANUARY, FEBRUARY & MARCH, 1938. FITTED WITH SPLIT SKIRT PISTONS FITTED WITH AEROLITE PISTONS HIGH PRESSURE SCRAPER RINGS A B C D E F G H J K | ||