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).
Technical note on material specifications for the Phantom III universal joint unit on the propeller shaft.
| Identifier | ExFiles\Box 94\4\ scan0123 | |
| Date | 5th July 1936 | |
| X337 BY.16/G.5.7.36. C. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} PHANTOM III - UNIVERSAL JOINT UNIT ON THE ENDS OF THE PROPELLER SHAFT. Please note that this piece should be made in S.Z.N.C.R. as soon as possible. It will not be necessary to keep any of the outside portions soft, but it is important to see that the bores remain soft. This part is very seriously overstressed in our standard S.Z.N., and therefore immediately we can get supplies in S.Z.N.C.R. it should be used and the present pieces turned over to the smaller cars as the same size piece is used. GRY{Shadwell Grylls} BY.{R.W. Bailey - Chief Engineer} | ||