Specification memo regarding valves, fittings, and camshafts for the Spectre project.
| Identifier | ExFiles\Box 96\2\ scan0049 | |
| Date | 5th July 1935 | |
| X354 To By {R.W. Bailey - Chief Engineer} /GSS. Hs {Lord Ernest Hives - Chair} /Swd1.11/KW. 5.7.35. Spectre(Codename for Phantom III). With regard to valves and fittings for the first production units, our up-to-date specification is as follows :- Valves & Fittings. 8 : 1 Eccentric ratio tappets, LeC.4427 to LOP.E.86922. Double valve springs to Hs. {Lord Ernest Hives - Chair} 1827/8. Bottom tappets to the original specification LOP.E.85337, with the exception that the bottom tappets E.85336 are chrome plated by the "Fescolised" process. The tappets are normally hardened before plating. Tappet Springs E.85314. Tappet blocks to E.84877 are now in alum. Camshaft & Bearings. Ex.18044 Camshaft in U.B.A.S. Hs {Lord Ernest Hives - Chair} /L.H.Swindall. | ||
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).