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).
Design status report for the SPECTRE model, detailing the progress of various components.
| Identifier | ExFiles\Box 30\3\ Scan020 | |
| Date | 3rd December 1934 guessed | |
| ITEM (2) DESIGN POSITION. SPECTRECodename for Phantom III - CONTINUED:- Instrument Patch. In hand. Marles steering box. Completed. Layout of flat fronted sloping radiator. In hand. Layout of Vee fronted sloping radiator. In hand. Raised petrol tank. Completed. Revised servo for semi servo braking system. In hand. Front exhaust expansion box to suit revised exhaust silencer. Completed. Air inlet scoop for dashboard (coachwork drawing). Completed. Modifications to carburetter and induction system. In hand. Larger exhaust valve (1.250" dia.). In hand. Modification to tappets. Completed. Four door close coupled saloon (coachwork drawing). In hand. Layout of enclosed drive limousine (coachwork drawing). Completed. Heelboard - propeller shaft pot (coachwork drawing). Completed. Mounting of Lucas horns (2nd chassis). Completed. Gearbox:- increased leverage on 1st and 2nd speed actuating gear. Completed. | ||