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).
Progress report on design modifications and tasks for the Phantom III model.
| Identifier | ExFiles\Box 30\4\ Scan038 | |
| Date | 6th November 1935 | |
| (3) ITEM DESIGN POSITION PHANTOM III - CONTINUED . Improved gearbox support rubbers. | Completed 5.11.35 Isolated change gear lever. | In hand. Larger air port in clutch casing cover. | Completed 5.11.35. Strengthened additional brake pull off springs. | " 6.11.35. Horizontal hand brake lever with increased travel. | In hand. Gearbox - cone fixing for constant mesh pinion. | In hand. Mock up of Duplex carburetter system for existing cylinder heads. | Completed 28.10.35. Top water rails - four port cylinder head. | In hand. 35. Top water pipes to radiator - four port cylinder head. | In hand. Gearbox:- modified rocking shaft for 3rd and top gear. | In hand. I.F.W.S. - machined face for main housing on front crossmember. | In hand. Mods. to autolock rod - rear dampers - temporary scheme. | Completed 19.10.35. Mods. to 2nd speed synchromesh to facilitate engagement. | " 29.10.35. Flame trap in carburetter air intake. | " 25.10.35. Thermostatically operated control valve for exhaust heat to Duplex carburetter. | In hand. Fitting of Clayton interior heater to dashboard. | In hand. Outside petrol tank filler. | In hand. | ||