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).
Summary report on the strip examination of a B.80 No.3 Unit engine following an endurance test.
| Identifier | ExFiles\Box 124\1\ scan0113 | |
| Date | 20th May 1939 | |
| 1044 To Rm.{William Robotham - Chief Engineer} from HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} c. By.{R.W. Bailey - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. HPS.{Horace Percy Smith - Experimental Factory Mgr} HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth}1/BA.20.5.39. B.80 No.3 Unit. Herewith summary of strip examination of the above unit to Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}6/MH.{M. Huckerby}15.5.39. Engine has run 105 hours 45 mins. last 50 hrs. of which was an endurance test. Crankcase and Bearings LOP.EB.4248. Crankcase - Chalk tested - O.K. and free from cracks. Main Brgs. - Condition good - measurements taken and recorded charts and photograph herewith. Camshaft Bearing Bores.- Condition satisfactory. Cylinder Bores.- Chalk tested and measured - condition good. maximum wear at crown .0005. Crankshaft LOP.EB.4121. Crankshaft magnetically tested - free from cracks - maximum wear is .0004" on journals and .0007" on pins. Oilers. - Chalk tested - free from cracks. Connecting Rod LOP.EB.4313. Conn.Rods magnetically tested for cracks - condition good big-ends measured and recorded - big and little end bushes in good condition ( photograph herewith ) continued. | ||