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 design of die-cast aluminium jack brackets for the Wraith chassis rear axle.
| Identifier | ExFiles\Box 139\1\ scan0351 | |
| Date | 27th January 1937 | |
| HFS. 1044 SECRET. CRY 116b c. Hs.{Lord Ernest Hives - Chair} Fm. By.{R.W. Bailey - Chief Engineer} Da.{Bernard Day - Chassis Design} E.2/HP.27.1.37. re Jack Brackets - Wraith Chassis. In connection with the jack brackets on the rear axle for Wraith it should be understood that the conditions are somewhat different from Phantom III owing to the elongated taper of the axle tubes overlapping the places where the jack brackets are normally fixed. We have however been able to arrange a die cast aluminium bracket secured in the same way as the Phantom III and prevented from sliding down the taper of the axle tube by an imprisoned key. E.{Mr Elliott - Chief Engineer} | ||