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).
Mandating the replacement of Phantom III mild steel differential boxes on 34 cars due to a failure.
| Identifier | ExFiles\Box 92\5\ scan0155 | |
| Date | 26th October 1937 | |
| Hd.{Mr Hayward/Mr Huddy} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} 302 Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}1/R.26.10.37. P.III DIFFERENTIAL BOX. In view of the failure of a Mild Steel Differential Box on a P.III car on the Continent, we must withdraw our Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}6/AP.10.6.37. in which it was decided to stop changing mild steel differential boxes for ones in S/N. It is therefore now necessary to change the remaining 34 cars. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||