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 items for the Spectre chassis and their current status.
| Identifier | ExFiles\Box 30\3\ Scan104 | |
| Date | 4th March 1935 guessed | |
| ITEM (3) DESIGN POSITION. SPECTRECodename for Phantom III CHASSIS - CONTINUED:- Revised scheme for friction on servo balance arm. In hand. Preselective gear change control. In hand. Pull up type hand brake lever. Completed. Revision of front end of chassis to improve shape of side members. Put aside. Gearbox:- modifications to reduce cost of manufacture. In hand. Lighter steering wheel and improved appearance of controls. In hand. Air cooled dynamo - 1 1/4 times engine speed. In hand. Fully automatic ignition control. Put aside. Oil sump mods. to prevent loss of oil pressure when braking etc. Completed. Modifications to carburetter. In hand. Automatic mixture control. In hand. Modifications to oil relief valve passages. Completed. New position for radiator drain cock. Put aside. Revision of cylinder liner bottom joint. In hand. Provision for supporting rear of engine when the clutch is dismantled. In hand. | ||