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).
Extract regarding the simplification of the Automatic Radiator Control for interchangeability between 25HP and 45HP models.
| Identifier | ExFiles\Box 105\1\ scan0072 | |
| Date | 8th July 1930 | |
| Extract from - X5250 SG.{Arthur F. Sidgreaves - MD} RG.{Mr Rowledge} } FROM R.{Sir Henry Royce} HS.{Lord Ernest Hives - Chair} BY.{R.W. Bailey - Chief Engineer} } R1/M8.7.30. X.7250. X.5250. WORK AT WW. AUTOMATIC RADIATOR CONTROL. This has been simplified and arranged to be made with all parts interchangeable between 25HP. and 45HP. R.{Sir Henry Royce} | ||