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).
Record of crankshaft wear dimensions for a Type 'O' engine after 110.25 hours of running.
| Identifier | ExFiles\Box 116\1\ scan0031 | |
| Date | 11th April 1938 | |
| DATE 11.4.38. CRANK N° 704 CRANKSHAFT WEAR ENGINE: TYPE 'O' SERIES: NUMBER BORE: 117.47 STROKE: 150 RECORD OF DIMENSIONS AFTER RUNNING: 110.25 HRS IN SERVICE BY: EXP. DEPT MATERIAL: EXPT. CON ROD BEARINGS R.R. BRINELL: Drawing Measurements (Top): 3.1248, 3.1248, 3.1245, 3.1245, 3.3743, 3.3743, 3.1245, 3.1245, 3.3748, 3.3748, 3.1247, 3.1247, 3.3745, 3.3745, 3.1245, 3.1245, 3.3745, 3.3745 Drawing Measurements (Bottom): 3.125, 3.125, 3.1248, 3.1248, 3.3745, 3.3745, 3.1247, 3.1247, 3.3747, 3.3745, 3.1248, 3.1248, 3.3743, 3.3743, 3.1248, 3.1248, 3.3748, 3.3748 | ||