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).
List of design modifications and their current status for the Phantom III and Wraith Chassis models.
| Identifier | ExFiles\Box 30\4\ Scan061 | |
| Date | 31th December 1935 guessed | |
| (sheet 5) ITEM. DESIGN POSITION. PHANTOM 3 (CONTINUED). Modified oil feed to hydraulic tappet mechanism. In hand. Larger starter motor. In hand. Gauze main pressure filter to replace Tecalemit filter element. In hand. Water return pipe from Duplex carburetter. In hand. Mods. to steering box to overcome joggles. In hand. WRAITH CHASSIS (TT) Front wheel and brake drum. In hand. Front brake mechanism. In hand. Steering column - Marles type. In hand. Gearbox:- ball bearings in place of roller bearings. Put aside. Front brake operating mechanism. In hand. Front suspension. In hand. Rear brake intermediate levers and 3rd crossmember. In hand. Rear extension of gearbox - to suit engine moved forward. In hand. Speedometer drive and governor unit modified to allow clearance with frame cross. In hand. Isolated gear change lever and horizontal hand brake lever. In hand. | ||