Modifications for the Wraith III back axle, applying features from the Phantom III axle.
| Identifier | ExFiles\Box 7\3\ X 602 Axle Rear-page36 | |
| Date | 22th March 1937 | |
| SECRET. 602. [Signature] EFM c.-S. Da. {Bernard Day - Chassis Design} Fm.NBS. E {Mr Elliott - Chief Engineer} /EV. {Ivan Evernden - coachwork} E {Mr Elliott - Chief Engineer} /HDY. {William Hardy} 2/NP.22.3.37. Wraith III Back Axle. We send herewith N.Sch.5090 showing a combined filling plug and level stick and a simplified vent (as already shown on N.Sch.4954 for the Wraith axle with 1.625" hypoid) applied to the Phantom III axle for use on the Wraith. These modifications should be introduced at the first convenient opportunity. It is not essential that they should be fitted to the first Wraith III. N.Sch.5090 herewith. E {Mr Elliott - Chief Engineer} /HDY. {William Hardy} | ||
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).