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 position updates and their completion dates for the Phantom III chassis.
| Identifier | ExFiles\Box 161a\4\ scan0163 | |
| Date | 2nd November 1936 | |
| ITEM PHANTOM III CHASSIS. DESIGN POSITION. Stronger throttle spring, Completed 19.10.36. Simplified speedometer drive etc., " 22.10.36. Adapting Wraith speedometer drive bearing., " 22.10.36. Increased travel for horizontal hand brake - also increased leverage., " 23.10.36. Increased clutch pedal travel., " 23.10.36. Harder Spicer type propeller shaft - to reduce cost., " 26.10.36. Stiffer filter by-pass spring., " 26.10.36. Modified tail pipe and suspension - smaller diameter and silent bloc support., " 26.10.36. Additional pressure filter element., " 26.10.36. Removal of lips from combustion chambers - 4 port cyl. head., " 26.10.36. " " " " " - 6 " ", " 26.10.36. Mod. to hand brake equaliser mechanism - reduces cost., " 26.10.36. Flexible flywheel and clutch., " 26.10.36. Mod. to bushes in 2nd speed driven gear., " 26.10.36. Mod. to panel milling of con. rods - cheaper production., " 27.10.36. Lighter outer spring - low stress valve springs., " 28.10.36. Single parallel valve spring., " 30.10.36. Settling chamber in pressure filter pot., " 2.11.36. Ventilated clutch., " 2.11.36. | ||