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).
Dynamometer running instructions for testing a 5.B.IV gearbox and axle.
| Identifier | ExFiles\Box 82\3\ scan0403 | |
| Date | 8th June 1938 | |
| γ To Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} 200k Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}9/MH.{M. Huckerby}8.6.38. DYNO. RUNNING ON 5.B.IV. TO TEST GEARBOX AND AXLE. Hi-Press in gearbox. H.G.L. in axle. 5.50 x 18 tyres on one side } For tests (a) (b) and first 7.00 x 17 tyre on other side. } 10 hours of (c). (a) 1 hour full throttle 2000 r.p.m. on direct. (b) 100 hours " " " " " overdrive (c) 30 hours " " " " " 2nd. (d) 2 hours " " " " " 1st. (e) 8 hours at 2nd. gear lift " " 1st. (f) 1/4 hour full throttle " " 1st. During tests (e) and (f) use Vacuum A in Gearbox. Axle temperature to be maintained as near as possible to 125°C and not to exceed 130°C. Lag if necessary. Gearbox temperature not to exceed 130°C. It does not matter if the gearbox runs cooler but this is unlikely. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||