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).
Programme of test bed work for various engine units and their components.
| Identifier | ExFiles\Box 155\2\ scan0073 | |
| Date | 9th April 1937 | |
| 1315 To Rm.{William Robotham - Chief Engineer} c. to Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} (struck out) c. to Rm{William Robotham - Chief Engineer}/GTS. (struck out) Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}6/AP.9.4.37 PROGRAMME OF TEST BED WORK. Further to Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}6/AP.2.4.37 No.5. Test Bed Ph.III. No.8 This unit to be next on the bed following the return of the Continental Unit (No.14) to the Shop. Special parts includes:- (1) Small base circle camshaft LeC.5320 with tappets to suit. Nos.1, 2 & 3 tappet blocks S/ZN. cloudburst. Nos.4, 5 & 6 Fescolised tappets. Tappet springs only on B. side tappets. In order to obtain as much information as possible regarding the tappets set as follows:- No.1 & 6 Blocks that is A.1,2,11 and 12 also B.1,2,11 & 12 with the hydraulic mechanism in operation as standard. No.2 & 5 Blocks that is A.3,4,9 & 10 also B.3,4,9 & 10 to be run at nominal clearances of .006" Inlet and .008 Exhaust" the hydraulic action being deleted by removal of the plunger return springs. A.5 & 6 and B.7 & 8 tappets as 1 & 6 blocks. A.7 & 8 and B.5 & 6 " as 2 & 5 " Run one hour under Bentley endurance speed. Fitters to remove tappets for inspection whilst on the bed, if in good condition rebuild and run further 9 hours. B.19 Unit Continue endurance as previous memo up to 50 hours duration, then return to Shop for examination. B.9 Unit This unit to be the next on test to continue with oil continued | ||