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).
On design improvements for the 25 HP model, focusing on the radiator and transmission line.
| Identifier | ExFiles\Box 105\1\ scan0042 | |
| Date | 26th October 1929 | |
| DA.{Bernard Day - Chassis Design} From R.{Sir Henry Royce} X5250 R.2/M26.10.29. c. to Sg.{Arthur F. Sidgreaves - MD} By.{R.W. Bailey - Chief Engineer} Hs.{Lord Ernest Hives - Chair} 25 HP. RADIATOR. X.5250 It is hoped that we shall be able to drop the bottom of the 25 HP. radiator to give more area, and to improve the appearance. (Da.{Bernard Day - Chassis Design} is working on this.) I have since thought that with the hypoid back axle we could drop the line of transmission, even if only a little. This would result in the floor and the top edge of the frame being lower, and perhaps unswept at the front, and so lower the floor both at the front and the back. This might be done at the same time as the improvements of reducing the diameter of the flywheel, and simplifying the clutch. R.{Sir Henry Royce} | ||