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 position report detailing modifications and their statuses for the Phantom II engine and Spectre chassis.
| Identifier | ExFiles\Box 30\3\ Scan155 | |
| Date | 17th April 1935 guessed | |
| ITEM. (2) DESIGN POSITION. PHANTOM II ENGINE. Noise insulated dashboard. In hand. PHANTOM II ENGINE. (TANKS) Modified position of air cleaner. In hand. SPECTRECodename for Phantom III CHASSIS. Cylinder head modifications. In hand. Relay operated change gear control. In hand. Gearbox:- Casing mods to take larger bearings for Cadillac 450 gears. In hand. Gearbox:- Permanent scheme for ball bearings for existing SpectreCodename for Phantom III gears. In hand. Air cooled dynamo and drive. - 1 1/2 times engine speed. In hand. Revised carburetters. Completed. Modified controls in the Vee to suit revised carburetters. Completed. Modified controls outside the Vee to suit revised carburetters. In hand. Provision for supporting rear of engine when clutch is dismantled. In hand. Spring drive and larger slipper wheel - permanent scheme. In hand. | ||