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).
Vehicle tyre sizes, testing procedures, test track facilities, and foundry practices for castings and forgings.
| Identifier | ExFiles\Box 154\2\ scan0047 | |
| Date | 3rd November 1937 guessed | |
| -5- Incidentally, they considered 7" section tyres small for the Phantom III, declaring that 8" would be their choice for a corresponding size of car. With their smaller cars, running in and preliminary power testing are done on a chassis dynamometer, and squeaks and rattles are located on a chassis vibrator. They still have a final road test, and the larger cars are road tested throughout. On land in their possession adjoining the Works they have a test track which includes a hill of 1 in 4, they find this very useful, as otherwise they have to go a long way to find such a steep hill. Their foundry is good, and they make and have made for years, steel castings. Apart from cases where these are used for actual production pieces, they use them regularly for experimental pieces where the final pieces are to be drop forgings. Da{Bernard Day - Chassis Design}/D.Bastow. Rm{William Robotham - Chief Engineer}/I.Leslie. | ||