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 illustrating a crack in the crankshaft of an R II engine.
| Identifier | ExFiles\Box 174\4\ img023 | |
| Date | 8th December 1930 | |
| CRACK IN CRANKSHAFT (E.{Mr Elliott - Chief Engineer} 32903) OF R.{Sir Henry Royce} II ENGINE Nº 2 CRANKPIN MAIN JOURNAL Nº 3 CRANKPIN G.{Mr Griffiths - Chief Accountant / Mr Gnapp} P. 8. 12. 30 | ||