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 departures from standard for the Continental Phantom III - 39-EX, detailing changes to the chassis and engine.
| Identifier | ExFiles\Box 92\6\ scan0137 | |
| Date | 9th April 1937 | |
| PER BAG. 300b. Sg.{Arthur F. Sidgreaves - MD} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}/Gryl/R.9.4.37. Continental P.III - 39-EX. Herewith a list of the departures from standard on this car. CHASSIS. (1) Frame, cross and pan of .080 material instead of .104. (2) Alum. front spring housings and frame distance pieces. (3) Wraith type steering box and lightened steering levers. (4) Continental P.II rear road springs. (5) Thinner Bonnet. (6) Lighter gauge petrol tank. (7) Alum. rear brake drums and simplified brake layout. (8) Lighter radiator. (9) Lighter exhaust system. (10) Magnesium gearbox casting and clutch pit. The former will be superseded by the final overdrive box. (11) Lightened body brackets and bumper bars. (12) Lockheed Jacks. ENGINE. (a) Lightened Packard type crankshaft. (b) Hall's metal bearings. (c) 20/25 dynamo running faster. (d) Various lighter castings. | ||