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).
Thermostat settings and 'B' filling for the Phantom II model.
| Identifier | ExFiles\Box 15\1\ Scan437 | |
| Date | 29th November 1930 | |
| x7-50. To BY.{R.W. Bailey - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}1/MJ.29.11.30. X. 7250. X. 3499. THERMOSTAT FOR PHANTOM 11. You will note that in RL/M25.11.30 R.{Sir Henry Royce} agrees to the advisability of allowing a high temperature before the thermostat opens the shutters. Previously he has been rather keen on 60° opening which is, of course, quite impossible. The thermostats we recommended the Works to proceed with were those having the 'B' filling of which you have a complete record. These give a running temperature of about 73° C. and we recommend that you proceed with this filling for the time being. Subsequently you may find that a still higher temperature is required, more especially for American conditions, as Hs.{Lord Ernest Hives - Chair} is already running with 73° and talking about raising the figure further. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||