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).
Performance and testing of post-war rationalised chassis designs.
| Identifier | ExFiles\Box 133\4\ scan0298 | |
| Date | 24th November 1942 | |
| 1212 600 800b To: Sg.{Arthur F. Sidgreaves - MD} and Hs.{Lord Ernest Hives - Chair} from Rm.{William Robotham - Chief Engineer} Rm.{William Robotham - Chief Engineer}4/CH. 24.11.42. Post War Rationalised Chassis. Although the national emergency has completely stopped all work on Chassis Development for obvious reasons, we have at least had the satisfaction of being able to run two fully rationalised cars a very considerable mileage. 30.G.VII, the largest in the range, has run 110,000 miles. 3.B.50, the 6 cylinder version, 65,000 miles. 30.G.VII was subjected to over 25,000 miles of the hardest driving on the Continent before starting mileage in England, so has had an exceptionally good test. The attached report from Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} gives a brief resume of how these cars have behaved, and also analysis of how the troubles which exhibited themselves on these cars have reacted to treatment. I think we can say, with the exception of the Gearbox, an this includes the Servo, we have few troubles for which some sort of cure has not been tested or designed. Unfortunately, we have not been able to get the new design of Gearbox running, and if we do get one completed the only vehicle upon which we shall get any useful information, is the Bentley Lorry. The high power simplified engines seem to have definate advantages, and the way they have maintained their tune is extraordinary. You will note that with the exception of the Water Pump, which has now been rectified, no part has been replaced on either the 8 cylinder or 6 cylinder engines in 300,000 miles. Rm.{William Robotham - Chief Engineer} | ||