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).
Scheme for radiator shutters for the 40/50 model, similar to those on the 20HP, to prevent engine overcooling.
| Identifier | ExFiles\Box 39\4\ Scan066 | |
| Date | 28th November 1923 | |
| X3499 R.{Sir Henry Royce} C. CE. C. WOF. C. HS.{Lord Ernest Hives - Chair} BY12-P28.11.23. 40/50 RADIATOR. Referring to R6/M211123, we have a scheme practically complete for a set of shutters for the 40/50 on precisely similar lines to those at present running on the 20HP. We propose to instruct these at once to Hs{Lord Ernest Hives - Chair}, who will, after fitting same up, issue the necessary standardisation sheet to bring into effect your wishes, as expressed in the above memo, for early adoption on the 40/50, in order to overcome the tendency to run with the jacket water too cool. BY.{R.W. Bailey - Chief Engineer} | ||