Test results for four returned calorstats from different chassis.
| Identifier | ExFiles\Box 156\2\ scan0160 | |
| Date | 24th November 1938 | |
| 1328 & 561 To Hd. {Mr Hayward / Mr Huddy} from Rm {William Robotham - Chief Engineer} /Std. c. D {John DeLooze - Company Secretary} /BP. c. Roy {Mr H. Royce - Buyer} /JT. Rm {William Robotham - Chief Engineer} /Std.7/MH. {M. Huckerby} 24.11.38. With regard to various calorstats which have been returned to us for examination, the following are the results of our tests:- Calorstat ex chassis GRO.28 - defective - fails to operate. " " " GWN.23 - Defective - starts to open 10° low. " " " GRP.38 - Defective - starts to open 4°C late. " " " GHO.25 - correct - opens correctly. These units have been returned by Roy {Mr H. Royce - Buyer} /JT. for examination and rectification, with the exception of unit ex chassis GHO.25 which is not defective. In the other three cases, the repairs should definitely be F.O.C. Rm {William Robotham - Chief Engineer} /Std. | ||
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).