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).
Report with diagrams showing the condition of connecting rod bearings after a 456-mile test.
| Identifier | ExFiles\Box 71\4\ scan0279 | |
| Date | 6th July 1925 | |
| Connecting Rod Bearings on 93NK. after 456 Miles Top Row: No1 cap: blow holes Rod: crushed No2 cap: crack Rod: metal in oil groove No3 cap: OK Rod: OK Bottom Row: No4 cap: OK Rod No5 cap: blow hole Rod: OK No6 cap: cracks Rod: crack There is no sign of metal becoming loose on any bearing at this stage. GHA 6/7/25 | ||