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).
The 100-hour bumper test of Phantom III front suspension levers, recommending their use for production.
| Identifier | ExFiles\Box 95\2\ scan0026 | |
| Date | 24th February 1936 | |
| X 346 To E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to By.{R.W. Bailey - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} Hs{Lord Ernest Hives - Chair}/Les.20/KW.24.2.36. Phantom III Front Suspension Levers N.Sch.4716. A pair of the above 2-key levers have now completed 100 hours on the bumper with 3" cams on the drums. This is twice the life of any other lever. After preliminary running it was found that one of the levers was slightly loose on the splines. It now appears that this clearance was present during the original assembly, as the slackness has not increased after 100 hours. The other lever is still a good fit on the splines. In view of the above we recommend that 2-key levers be used for production. These are fitted to 32-EX. Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} | ||