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 procedure to simulate London traffic conditions.
| Identifier | ExFiles\Box 49\2\ Scan100 | |
| Date | 14th July 1922 guessed | |
| To represent London traffic the test might also include stopping and starting 20 times, and standing still with the engine running for five minutes. B.J. | ||