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).
Dispatch of drawings for a Wraith III engine water pipe and twin coils.
| Identifier | ExFiles\Box 6\6\ 06-page167 | |
| Date | 16th March 1937 | |
| fm Vtr 600 BY.{R.W. Bailey - Chief Engineer} c. Rm.{William Robotham - Chief Engineer} HRS. SECRET. E/JNR.{Charles L. Jenner}1/HP.16.3.37. Wraith III Engine. We send you herewith:- LeC.5570 showing the water pipe running from the hot spot box to the water pump. We have shewn on the elbow of the water pump the tap for the Clayton Heater. It would be best to provide for this straight away, and when it is not required it can be plugged. Also herewith LeC.5571 showing the twin coils, the bracket, and the ballast resistance. The number of the coils is D.75673. E/JNR.{Charles L. Jenner} | ||