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).
Inspection and chalk testing of pistons for a 10,000 miles test.
| Identifier | ExFiles\Box 86\2\ scan0152 | |
| Date | 16th November 1933 | |
| XZ-6 To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}5/KT.16.11.33. PISTONS FOR 10,000 MILES TEST. While you have the unit for the 10,000 miles test car stripped (B.8 unit), will you please ensure that the pistons are identical to those which were fitted to B.6. unit and which have just completed 20 hrs. running. Will you please again chalk test the pistons out of B.6. unit and let us have the inspection report. We are particularly anxious not to slip up on any heat treatment again. Will you also please have the pistons removed from the black open touring car, which have been replaced by Aerolite pistons, chalk tested for cracks. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||