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).
Meeting notes discussing modifications to the Phantom III crankshaft, Wraith costs and chassis, and the 26-G-VI gear ratio.
| Identifier | ExFiles\Box 161a\2\ scan0159 | |
| Date | 2nd March 1938 | |
| - 4 - PHANTOM III 13. Crankshaft Rm{William Robotham - Chief Engineer} stressed the importance of introducing a modified type of crankshaft which would effect a saving of £3.10.0. per chassis. It was reported that all shafts for "D" series had been ordered and that new dies would be required before introducing the modified crankshaft. Gry{Shadwell Grylls}, however, referred to the possibility of machining the present series shafts differently to bring about the economy measure suggested by Rm.{William Robotham - Chief Engineer} It was left for Gry{Shadwell Grylls} and Mr.Reid to investigate the possibilities of this and report further at the next meeting. WRAITH 1. Costs Investigations are proceeding. It was hoped that some information on the advantage to be gained by ordering 500 sets of material against 200 sets would be available by the next meeting. 3. Wraith Chassis The position with the production of chassis is fully reported in RHC{R. H. Coverley - Production Engineer}6/MJ18.2.38. 3. 26-G-VI The question of the gear ratio was discussed and all indications favour the higher ratio being adopted. Sg{Arthur F. Sidgreaves - MD} enquired why Experimental were so long in deciding that the car was under-geared having regard to the previous experience with 26-G-VI in France in July and August 1937. It was pointed out that the engine of the first car was no criterion as it was not of the approved design. It was decided that Sg{Arthur F. Sidgreaves - MD}'s car was to have the higher gear ratio obtained temporarily by the fitting of larger diameter wheels. Later this car will be fitted with the P.III high ratio gears in the back axle. As regards the failure of the Delco distributor drive, this | ||