Malfunctioning steam valve on the Phantom III radiator, referencing a modified design.
| Identifier | ExFiles\Box 94\3\ scan0018 | |
| Date | 18th September 1935 guessed | |
| X 340 BY. {R.W. Bailey - Chief Engineer} c. RMC. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} Hs {Lord Ernest Hives - Chair} /Steadman. SECRET. E {Mr Elliott - Chief Engineer} /JNR. {Charles L. Jenner} 3/HP.17935 Phantom 3 Radiator. The steam valve on the radiator is not working properly, its open position being too short in stroke. We send you herewith LeC.4600 showing a modified design. Drawing to BY. {R.W. Bailey - Chief Engineer} Blueprint to Hs {Lord Ernest Hives - Chair} /Steadman. E {Mr Elliott - Chief Engineer} /JNR. {Charles L. Jenner} | ||
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).