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 comparing cylinder wear and reboring rates for different engine series and piston types.
Identifier | ExFiles\Box 132\4\ scan0133 | |
Date | 9th April 1938 | |
SHOWING THE NUMBER OF BLOCKS FROM EACH SERIES AS A PERCENTAGE OF THE TOTAL NUMBER OF CYLINDER BLOCKS REBORED 20% 15% 10% 5% 0 A B C D E F G H SPLIT SKIRT PISTONS AEROLITE PISTONS AVERAGE MILEAGE BEFORE REBORE 33,700 MILES AVERAGE MILEAGE BEFORE REBORE 25,800 MILES .015 .010 .005 GRAPH SHOWING AVERAGE CYLINDER WEAR PER 30,000 MILES OF THE TOTAL NUMBER OF CYLINDER BLOCKS REBORED 9.4.38/GL{G. Linnett} | ||