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).
Monthly report for May on cylinder bore wear experiments, detailing allocations of special engine blocks and inserts.
| Identifier | ExFiles\Box 132\5\ scan0090 | |
| Date | 31th May 1939 | |
| 1123. COPY FOR FILES. CYLINDER BORE WEAR. MONTHLY REPORT - MAY. In connection with experiments which are being carried out to find an improvement for production, the following is the position to date regarding these experiments. Allocation of Special Parts. Complete blocks in Nickel Chrome Molybdenum. Four such blocks are now in service on customers' cars as follows:- Chassis. Date test started. B.140 HK.{Col. T. Harker - Sales} 22.2.39. B.70.GA. 24.2.39. B.44.LS. 16.1.39. B.86.LS. 15.2.39. W.RIP.No.2 Expl. unit. Short inserts (Brico Patent). Unit No. Chassis. Matl.(cyls.) Pistons. A.4.BM. B.50.LS. (Lp{Mr Lappin}) EW.2929 1,2,3 EB.3916 ALL.HICR. + .015 W.XA.2 WHA.2 (Hs{Lord Ernest Hives - Chair}) EW.1923 Wraith Prod. 1,2 Std. 3,4 A.103 5,6 B.106 B.60 No.1 EB.3778 EB.3916 1,2,3 BRN. +.010 4,5,6 HICR. + .010 Continued. | ||