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).
The use of thermostats versus hand-operated shutters on chassis radiators.
| Identifier | WestWitteringFiles\F\February1921\ Scan58 | |
| Date | 23th April 1921 | |
| To R.R. of America Inc. from R.{Sir Henry Royce} (For the attention of CY) Copy to CC. " " MS. " " EFC. ORIGINAL RE CHASSIS - THERMOSTAT. X.3563 X.3495 X.3499 RECEIVED 3 With reference to BY10/P14/2/21, thermostats are not considered absolutely necessary, though I think desirable, but all cars should be fitted with hand operated shutters in front of radiators, and thermometers, pending satisfactory shutters operated by thermostat, which we consider ideal, though even this arrangement may have defects of allowing too high a temperature for alcohol. R.{Sir Henry Royce} | ||