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).
Overheating issues and potential design limitations of the Phantom III model's cooling system.
| Identifier | ExFiles\Box 131\5\ scan0067 | |
| Date | 26th April 1938 | |
| X 11/4 To Hy.{Tom Haldenby - Plant Engineer} from Rm.{William Robotham - Chief Engineer} c. Mr. c. Mx.{John H Maddocks - Chief Proving Officer} c. Ms. c. Rd. c. Du. c. Br.{T. E. Bellringer - Repair Manager} c. RWC. c. Br.{T. E. Bellringer - Repair Manager} P.III. COOLING SYSTEM. The attached memo is circulated with a view to establishing clearly under what conditions the present P.III may be expected to lose steam or water due to the limitations of the design of its cooling system. If our figures represent what actually happens in London traffic, then it ought not to be necessary to change over wholesale to high speed fans. If a serious epidemic of over-heating occurs during the next hot spell in London, we should like to send a representative down to investigate the conditions on the spot. We believe that choked radiator matrices have created a false impression as to the tendency of the P.III to over-heat. It is difficult to believe that the three cars reported to have over-heated in April in G1/C.23.4.38 were not due to some defect. Rm.{William Robotham - Chief Engineer} | ||