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).
Graph showing the deflection of a 20 HP central journal when twisting a crankshaft.
| Identifier | WestWitteringFiles\R\2December1927-February1928\ Scan034 | |
| Date | 9th December 1927 | |
| 20 H.P. DEFLECTION OF CENTRAL JOURNAL, WHEN TWISTING CRANKSHAFT. JOURNAL MOVEMENT - THOUSANDTHS OF AN INCH. UPWARDS DOWNWARDS DEGREES TWIST 2 1 0 1 2 1.000 .500 .500 1.000 1.500 2.0 9.12.27. | ||