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).
Letter discussing the Vulture engine's progress, valve reports, and a design comparison with the Curtiss Conqueror.
| Identifier | ExFiles\Box 173\1\ img242 | |
| Date | 28th January 1934 | |
| SG{Arthur F. Sidgreaves - MD} NOR ERG Ry LR{Mr Ellor}/HS{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer} Detroit Athletic Club Ph/11/2.9.2.34 28/1/34 Hs.{Lord Ernest Hives - Chair} Thank you very much for your Hs{Lord Ernest Hives - Chair}6/IT/19.1.34. I was very pleased to hear that you have finished the Vulture and hope that it comes up to expectations. I got the valve reports for which please thank A.C.L. I will discuss them with Heron when he comes to Detroit in a week, he was here on Thursday. R.H.C. will have told you about the stellite. I hope that I made it clear that the larger exhaust valve was to improve power output & not specifically anything to do with lead. Actually now, you at Derby are ahead of the Curtiss conqueror, mainly I think because they have an even worse head design for distortion than we have. | ||