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).
Request to test high rating valve springs on the Vulture cylinder head using 'R' engine valve springs.
| Identifier | ExFiles\Box 123\3\ scan0105 | |
| Date | 23th January 1934 | |
| To RHC.{R. H. Coverley - Production Engineer} X4704 Hs{Lord Ernest Hives - Chair}/Std.1/KW23.1.34. We wish to try some high rating valve springs on the Vulture cylinder head (automatic tappets), and for this purpose propose to use 'R' engine valve springs (E.38154 & E.38155). Will you please have a set of top washers and bottom washer packing pieces made to accompanying sketches (Hs.{Lord Ernest Hives - Chair}1283 & Hs.{Lord Ernest Hives - Chair}1284). These are required as soon as possible. Hs{Lord Ernest Hives - Chair}/C.S. Steadman. | ||