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, outlining endurance tests and development features.
| Identifier | ExFiles\Box 155\2\ scan0013 | |
| Date | 7th December 1936 | |
| 1315 To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. to Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} c. to Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}9/AP.7.12.36. PROGRAMME OF TEST BED WORK. Further to memo Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}13/AP.30.11.36. NO.5. TEST BED. Ph.III. No.6. Unit Endurance on this unit which is now on bed. 3 RR.56. big ends and 3.A.C.1. (Strap rods) small dia. pin crank to suit strengthened bearing bushes. A.C.7. main bearings and RR.56. shims. Oil temperature at 100°C. inlet, minimum oil pressure 30 lbs/Sq.in. Ph.III. No.3. Unit. Now being assembled in Shop for endurance. 3.Z.3. W/M.{Mr Moon / Mr Moore} and 3 Eleven H.{Arthur M. Hanbury - Head Complaints} W/M.{Mr Moon / Mr Moore} big end bearings. These with std. Marine rods. W/M.{Mr Moon / Mr Moore} std. main bearings. Ph.III. No.14. (Continental Unit) New unit with following special features for further development work. (1) 1½ engine speed dynamo and water pump. (2) Cylinder heads ex No.8. unit but with S/SLV. exhaust valves (not stellited). (3) Continental camshaft ex No.8. Unit. (4) RR.56. big end bearings (Strap rods) Reduced dia. crankpin. (5) AC.1. main bearings and extra hole in each crank journal. (6) 8 Fescol, 8 Hykro and 8 cloudburst hardened tappets. With best timing as found on No.8. unit. continued | ||