Graph of oil consumption test bench results for an E.A.C. engine, comparing pistons with scraper rings to standard pistons with plain rings.
| Identifier | Morton\M3.1\ img012 | |
| Date | 19th May 1925 | |
| OIL CONSUMPTION CURVES FOR E.A.C. ENGINE. TEST BENCH RESULTS. OIL CONSUMPTION. PTS/HOUR. 5 4 3 2 1 0 R.P.M. 2000 2500 2750 PISTONS WITH SCRAPER RING AT BOTTOM OF SKIRT. AVERAGE STANDARD WITH PLAIN RINGS. AC4/25 | ||
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).