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).
Sending designs for the Wraith III Engine, specifically for the relief valves, external oil fittings, and wheelcase.
| Identifier | ExFiles\Box 91\1\ scan0496 | |
| Date | 22th March 1937 | |
| Reader 300. [Signatures] c. HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm.{William Robotham - Chief Engineer} Da.{Bernard Day - Chassis Design} Em/L.Smith. E/JNR.{Charles L. Jenner}1/HP.22.3.37. Wraith III Engine. We send you herewith:- LeC.5580 showing the relief valves and external oil fittings. LeC.5590 Wheelcase. We have now cleared all the designs for getting the engine on the test bed. There are two remaining items, the controls and the wire fittings which we have well in hand, and which we expect to release before the detail drawings are issued. The above are not essential for the test bed engine. E/JNR.{Charles L. Jenner} | ||