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).
Table of cylinder wear measurements for various chassis during September 1938.
| Identifier | ExFiles\Box 103\2\ scan0073 | |
| Date | 30th September 1938 | |
| PARTICULARS OF CYLINDER WEAR DURING SEPTEMBER. 1938. Showing amount plus nominal and oval in thousandths of an inch. Date | Chassis | Mlg. | No: 1. | No: 2. | No: 3. | No: 4. | No: 5. | No: 6. | Remarks. ---------------------------------------------------------------------------------------------------------------------------------------------------------------- 1:9:38 | B. 70"K.T." | 9950 | .005 .001 | .0045 .0005 | .0045 .0005 | .0055 .001 | .004 .0005 | .005 .0015 | 4, +½ 1:9:38 | B.137"H.M." | 28324 | .006 .002 | .006 .001 | .006 .001 | .006 .002 | .006 .001 | .0055 .0015 | 1:9:38 | B. 19"H.M." | 24602 | .006 .0015 | .0075 .0025 | .008 .002 | .006 .001 | .007 .001 | .007 .0015 | 1 +2 2:9:38 | B. 35"H.M." | 23691 | .0075 .0025 | .0075 .002 | .007 .002 | .006 .0015 | .006 .0015 | .005 .001 | 4 &5 +1 2:9:38 | B. 72"K.T." | 11774 | .004 .0005 | .005 .001 | .004 .0015 | .006 .002 | .005 .001 | .005 .0015 | 5 + ½ 2:9:38 | B. 39 E.J. | 31023 | .004 .0005 | .004 .0015 | .004 .001 | .003 Nil | .004 .0015 | .005 .0015 | All +1 :9:38 | B. 14"J.D." | 6963 | .002 .001 | .0035 .002 | .005 .0025 | .0025 .001 | .002 .001 | .002 .001 | All +10 5:9:38 | B.189"H.M." | 23133 | .006 .0035 | .007 .003 | .005 .0025 | .0035 .0005 | .0045 .001 | .006 .0025 | 6:9:38 | B.156"G.A." | 13893 | .0015 Nil | .002 Nil | .0015 .0005 | .001 Nil | .001 Nil | .0015 .0015 | All +10 (H.85) 6:9:38 | B. 39 "J.Y." | 17882 | .003 .0005 | .0045 .002 | .004 .0005 | .0045 .0005 | .003 .001 | .002 .002 | 1,2,5 &6 +½,3 &4 +1½ 6:9:38 | B. 15 "H.M." | 20640 | .007 .004 | .006 .001 | .006 .001 | .0045 .001 | .005 .002 | .005 .002 | 4 +1, 6 + ½ 6:9:38 | B.158 E.F. | 20035 | .004 .0005 | .0045 .0005 | .005 .001 | .005 .001 | .005 .0005 | .005 .0005 | 7:9:38 | B. 78"K.T." | 9925 | .0015 Nil | .0015 .0005 | .002 Nil | .0015 .0005 | .0015 .0005 | .0015 .0015 | 1 &5 +½,3,4 &6 +1 7:9:38 | B.118"L.S." | 11083 | .003 .001 | .0025 Nil | .0025 .0005 | .003 .0005 | .0025 .001 | .0025 .001 | 3 + ½ 7:9:38 | B. 87"J.Y." | 6020 | .001 .0005 | .0015 .002 | Nil Nil | .002 .0005 | .0005 .002 | .002 .0005 | 4 +1, 6 + ½ 7:9:38 | B.132"G.A." | 12998 | .001 Nil | .0015 .001 | .002 .001 | .0015 .0005 | .0015 Nil | .0015 .0005 | 12:9:38 | B. 97"J.Y." | 17272 | .0035 .001 | .0035 Nil | .004 .001 | .004 .0005 | .003 .0005 | .003 .001 | All +20 (H.60) 13:9:38 | B. 24 D.G. | 47589 | .005 .0015 | .005 .0015 | .0045 .001 | .004 .001 | .004 .0005 | .004 .0005 | 13:9:38 | B.121 E.J. | 45290 | .0075 .004 | .008 .0025 | .009 .003 | .0065 .002 | .006 .001 | .0055 .0005 | All +15 (H.27) 13:9:38 | B.196"K.T." | 10325 | .0015 Nil | .002 Nil | .0025 .001 | .002 Nil | .002 Nil | .002 .0005 | 1 &6 +½ 13:9:38 | B. 43 E.J. | 40340 | .009 .005 | .008 .0015 | .0115 .0045 | .010 .004 | .007 .004 | .008 .002 | All +1 Rebore. 14:9:38 | B. 17"L.E." | 5882 | .002 .0005 | .002 .0005 | .0025 .0005 | .002 .0005 | .002 .0005 | .001 Nil | 14:9:38 | B. 50"H.K." | 22667 | .0045 .002 | .0045 Nil | .003 .0005 | .005 .001 | .004 .001 | .004 .003 | 1 &5 +1 16:9:38 | B.125 B.L. | 26987 | .004 .001 | .005 Nil | .0045 .0005 | .0035 .0005 | .0035 .0005 | .0035 .0005 | 19:9:38 | B.176 G.R. | 15369 | .0055 .0015 | .004 Nil | .004 Nil | .0045 .0005 | .0045 Nil | Nil .0015 | All +10 (H.51) 19:9:38 | B. 33"G.P." | 13863 | .0015 .0005 | .0015 .0005 | .0015 .001 | .0015 Nil | .001 .001 | .0015 .001 | All +10 20:9:38 | B. 2 "K.T." | 12128 | .003 .0015 | .003 .001 | .0035 .0005 | .0025 .001 | .0025 .001 | .003 .001 | 3 + ½ 20:9:38 | B.110"H.K." | 27102 | .005 .001 | .0045 .0005 | .005 .0005 | .0045 .001 | .005 .001 | .0045 .0005 | 4 +1 20:9:38 | B. 29"G.P." | 34091 | .0075 .0045 | .007 .0035 | .006 .0025 | .008 .002 | .004 .002 | .004 .0015 | 21:9:38 | B. 73"G.P." | 16155 | .0045 .0015 | .003 Nil | .0035 .0005 | .0045 .001 | .0025 .0005 | .0025 .0005 | 21:9:38 | B.165"K.U." | 13477 | .002 Nil | .001 .0005 | .002 .001 | .0015 .0005 | .002 .0005 | .002 .001 | All +10 21:9:38 | B. 71 E.J. | 36687 | .008 .0025 | .011 .0045 | .009 .0025 | .009 .0025 | .008 .001 | .010 .002 | Rebore. | ||