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 and their status for the Phantom III Chassis.
| Identifier | ExFiles\Box 30\4\ Scan029 | |
| Date | 22th October 1935 | |
| ITEM. (3) DESIGN POSITION. PHANTOM 3 CHASSIS (CONTINUED). Air silencer for Duplex carburetter system. In hand. Improved gearbox support rubbers. In hand. Isolated change gear lever. In hand. Larger air port in clutch casing cover. In hand. Mod. to scissor lever bearing and balance arm pin to prevent wear. Put aside. Strengthened additional brake pull off springs. In hand. I.F.W.S. Filter in pivot lubrication system. Completed 22.10.35. Horizontal hand brake with increased travel. In hand. Top and third synchromesh cones with 9° angle and anti-rattle device. Completed 17.10.35. Gearbox:- cone fixing for constant mesh pinion. In hand. Mock up of Duplex carburetter system for existing cylinder heads. In hand. Low rating throttle spring - existing 4 carburetter system. Completed 8.10.35. Modified float chamber and vent to air silencer - existing carburetters. Completed 9.10.35. Flame trap in air silencer intake pipe. Completed 11.10.35. Top water rails - four port cylinder head. In hand. Top water pipes to radiator - four port cylinder head. In hand. Increased diameter inlet and exhaust valves - four port cylinder head. Completed 17.10.35. | ||