Approving the use of tested rear engine mounting torque rubbers for the Wraith model production cars.
| Identifier | ExFiles\Box 8\7\ 07-page79 | |
| Date | 14th July 1938 | |
| To By. {R.W. Bailey - Chief Engineer} c. to RHC. {R. H. Coverley - Production Engineer} c. to LA. {L. A. Archer} c. to By {R.W. Bailey - Chief Engineer} /NS. {Norman Scott} 546 622 Rm {William Robotham - Chief Engineer} /Wym. {G. Harold Whyman - Experimental Manager} 9/JH.14.7.38. WRAITH ENGINE REAR SUSPENSION. We have now tested the rear engine mounting large torque rubbers as shown on OCD.714, and consider them satisfactory for production cars, we should therefore like you to issue the necessary instructions to all concerned. Please note the drilling modifications and alteration to Die-cast bracket shown on OCD.714. The durometer hardness of the rubber should be 45°. Rm {William Robotham - Chief Engineer} /Wym. {G. Harold Whyman - Experimental Manager} | ||
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).