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).
Experiments conducted on the 25 HP car to improve smoothness and reduce vibration.
| Identifier | ExFiles\Box 181\M13\M13.2\ img092 | |
| Date | 29th August 1931 | |
| ORIGINAL To R.{Sir Henry Royce} From Ha. c. to Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} c. to Ey. Rs.{Sir Henry Royce's Secretary}3/W.29.8.31. X.5770. 25 HP. CAR. Our experiments on the 25 HP. car have been carried out on two cars. On 12-G4 which we have had at Brooklands we have gone out for performance, and on 18-G4 the work carried out has been to increase smoothness and reduce vibration. The results now justify incorporating all the good features on one car and these are being fitted to 18-G4 which has an enclosed body. The parts which are being used are all within reach for production, most of them can be made from existing material. We expect to have this car ready in about a week or ten days. Ha. | ||