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).
Test report on a large rear axle tube showing slight permanent deflection under a 2-ton load.
| Identifier | ExFiles\Box 77\1\ scan0100 | |
| Date | 4th July 1911 guessed | |
| No. 3. 1700 Rear axle tube We tested one of the large rear axle tubes and it stood full load of 2 tons at centre line of wheel quite well. It showed a slight permanent deflection after, however, when running in lathe. [Handwritten annotation] Is this sufficient & submit to alter ----- RMHS | ||