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).
Blueprint showing the results of a model crankshaft fracture test.
| Identifier | ExFiles\Box 63\4\ scan0108 | |
| Date | 28th January 1930 | |
| DES 995 WEBS .295 THICK. FRACTURED 4,400,000 REVERSALS MODEL CRANK TESTS ROLLS-ROYCE, LIMITED PRINT ROOM 28 JAN 1930 DERBY | ||