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).
Engine component failures, specifically main bearings and connecting rods, over quarterly and six-month periods.
| Identifier | ExFiles\Box 146\2\ scan0151 | |
| Date | 31th March 1937 guessed | |
| 67- 24. MAIN BEARING EXCESSIVE WEAR OR BEARINGS IN A CRACKED & UNRELIABLE CONDITION March quarter C.C. C.P. ----- Previous quarter C.C. I C.P. 4 5 ----- Six months 5 5 ======================== 25. FITTED A SET OF CONNECTING RODS WITH HALL's METAL BEARINGS. March quarter C.C. C.P. 2 2 B.137.EJ - 50219 Kms. ----- B. 33.CW @ 29089 Kms. Previous quarter C.C. C.P. 4 4 ----- Six months 6 6 ======================== 26. (a) FAILURE OF CONNECTING ROD. (b) FAILURE OF N°. 5 CONNECTING ROD BEARING (WHITE METAL) March quarter C.C. C.P. ----- Previous quarter C.C. I I C.P. ----- Six months I I ======================== 27. | ||