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).
Blowholes in A.C.6. connecting rod bearings for the Bentley Chassis 57-KW.
| Identifier | ExFiles\Box 115\3\ scan0022 | |
| Date | 15th July 1937 | |
| Files SWDL{Len H. Swindell} WHAT IS THIS Rm{William Robotham - Chief Engineer} To Rm.{William Robotham - Chief Engineer} from HPS.{Horace Percy Smith - Experimental Factory Mgr} c. to RHC.{R. H. Coverley - Production Engineer} c. to HL 1020 HPS.{Horace Percy Smith - Experimental Factory Mgr}5/VS.{J. Vickers}15.7.37. BENTLEY CHASSIS 57-KW. As you are aware, BY.{R.W. Bailey - Chief Engineer} has agreed to the release of the A.C.6. connecting rod bearings for the above chassis, which were submitted to him for approval when blowholes were observed in the bore. In view of the fact that these bearings are shortly to be standardised for Production, and since we machined, in all, three sets of bearings and failed to produce a complete set free from defects, we consider the necessary steps should be taken immediately to obviate similar difficulties when this alloy is placed on Production. HPS.{Horace Percy Smith - Experimental Factory Mgr} [signature] | ||