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).
Test schedule for various engine units, including damper comparisons, clutch tests, and bearing endurance.
| Identifier | ExFiles\Box 155\2\ scan0167 | |
| Date | 17th November 1937 | |
| -3- (1) Check engine for periods etc. Further work dependent upon the results obtained. Any troubles and alterations, no matter how small to be noted in order that they may be corrected in future units built. NO. 5 TEST BED. PH. III NO. 12 UNIT. When the Summers indicator has been adjusted to operate correctly compare the following dampers in regard to crankshaft torsional periods (a) Standard (b) Buick. (c) Cadillac. (d) R.R. floating type. B.11 UNIT. Continue clutch slip tests for Rm{William Robotham - Chief Engineer}/NRC{N. R. Chandler} with various facings. B.9 UNIT. This unit is being assembled with AC.6 centricast bearings for endurance and should replace B.11 unit when ready. Endurance to comprise 50 hours each hour at usual Bentley speeds 7 hours full throttle. 2 " half " 1 " quarter " Inlet oil temp to be varied between 100°C and 130°C. | ||