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).
Modified boss and level plug for the Spectre rear axle casing.
| Identifier | ExFiles\Box 92\5\ scan0007 | |
| Date | 20th November 1934 | |
| To BY.{R.W. Bailey - Chief Engineer} Copy to Wer. I. Hs.{Lord Ernest Hives - Chair} Hoy. WHC. 302 Da.{Bernard Day - Chassis Design}2/MN.20/11/34. SpectreCodename for Phantom III Rear Axle Casing. Herewith is N.Sch. 4270 showing the modified boss and level plug for use on the LH{Mr Haworth} side of axle centre casing. Due to the closeness of the nut on the crown wheel the type of internal boss used on the RH{R. Hollingworth} side is not suitable. Experimental Dept. will perhaps choose between the forward and rearward position of the plug. Da.{Bernard Day - Chassis Design} | ||