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 results of a radiator test, detailing temperatures with shutters open versus in operation.
| Identifier | ExFiles\Box 101\4\ scan0152 | |
| Date | 21th December 1935 | |
| X500a To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to Hs{Lord Ernest Hives - Chair}/Std. Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux}3/KW.21.12.35. 21-G-IV. Result of Radiator test - With shutters full upon 36°C. for a distance of 6 miles, with shutters in operation - 75°C. Air temperature 0° to -1°C. Hs{Lord Ernest Hives - Chair}/G.W.Hancock. | ||