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).
Instructions for fitting out Test Bed Unit BJ-55 to complete tests on Phantom Silent Tappets.
| Identifier | ExFiles\Box 17\6\ Scan307 | |
| Date | 6th September 1934 | |
| To RHC.{R. H. Coverley - Production Engineer} 47060 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}12/KW.6.9.34. Phantom Silent Tappets. Test Bed Unit BJ-55. To complete the tests on silent tappets for production will you please fit BJ-55 unit up as follows :- (1) Camshaft as in Hs{Lord Ernest Hives - Chair}/Smth.18/KW.5.9.34. (2) Silent tappet head you are producing which is exactly similar to that on 28-EX. (3) Valve springs E.85666. (4) Valves and valve gear as on 28-EX. Since the silent tappets are being standardised and will shortly be on production, we should be glad if you could urge this unit for us. (5) In addition will you build a carburetter to E.84480 which is going into production, for testing out on this unit. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||