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 B.III and Wraith III engine units.
| Identifier | ExFiles\Box 155\2\ scan0207 | |
| Date | 28th March 1938 | |
| To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. Rm{William Robotham - Chief Engineer}/Mtns. c. Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} c. Rm{William Robotham - Chief Engineer}/D.Lee. 1315 Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}1/MH.{M. Huckerby}28.3.38. PROGRAMME OF TEST BED WORK. Further to Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}2/MH.{M. Huckerby}2.3.38. NO.30 BED. B.III NO.1 UNIT (a) bed. (1) Continued distribution and economy tests on B.III and Wraith III induction systems. (2) At first opportunity investigate gear rattle which has developed. (3) Check detonation characteristics with water temps. 50° - 90°C. WRAITH III NO. 1 UNIT (b) bed. (1) When successful recording fingers have been produced for Torsional Indicator, complete full throttle and lightest load diagrams over full speed range. This condition as existing with standard damper poundage and flywheel. (2) Following (1) flexible flywheel to be fitted and observed by NRC.{N. R. Chandler} (3) In this condition Torsional diagrams to be recorded full throttle and light. WRAITH III NO.4 UNIT. This unit will be ready by the time the above torsion tests have been carried out and we should continue with same which at the same time runs following special parts. Chrome cylinder block Monikrom camshaft Inlet valves in 7.5% Chrome as forged Almost to size by BELGRAVE ENG. Co. | ||