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).
The failure of a Dynamo Suspension Bracket during a test bed run.
| Identifier | ExFiles\Box 168a\3\ img062 | |
| Date | 8th July 1939 | |
| To Rm.{William Robotham - Chief Engineer} from HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} O.Rm.{William Robotham - Chief Engineer} C. Bp. 6142 bAP HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth}R/BA.8.7.39. Re What is being done B.60.No.3 Unit (Engine) Failure of Dynamo Suspension Bracket. EB.4058. Failure occurred after 118 hours 25 mins. on Test Bed of which 26 hours were full throttle. Rear support arm failed in the bend and cracked from the 0.050 radii towards the 0.3125 dia holes at the rear and from the bottom corner at the front end, as shewn on the attached photograph. HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} RW | ||