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).
List of questions regarding engine production accuracy, experiments, bore wear, and ring tension.
| Identifier | ExFiles\Box 114\3\ scan0006 | |
| Date | 13th February 1939 | |
| -2- 13.2.39. (14) What is the sort of accuracy we get on our production cylinder bores to-day when the block is bolted to the crankcase and the head is in position? (15) What is the position of the various experiments that GWH{George W. Hancock - Head Chateauroux} is supervising? * (16) Have we any definitely "worse cylinders" from the records available, either on the 25/30 or on the Bentley? (17) Why should we have to rely on Kingsbury for all our figures on bore wear? Why should not an organisation be started at Derby for getting the same figures? (18) What is the effect of C/R on blow by? Ought we to increase ring tension on our 8-1 heads? (19) Would not Harvey make a good assistant to stick to cylinder bore wear? Rm.{William Robotham - Chief Engineer} | ||