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 detailing cylinder wear measurements (nominal and oval) for various chassis during April 1939.
| Identifier | ExFiles\Box 103\2\ scan0023 | |
| Date | 4th May 1939 | |
| To B-r from PK/KC/FED. c.to Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} ✓ File W/Kingsbury. 4th: May 1939. PARTICULARS OF CYLINDER WEAR DURING APRIL. 1939. Shewing amounts 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. 3:4:39 | B.144"J.D. | 12819 | .004 .0015 | .0035 .0005 | .004 .001 | .004 .0005 | .0035 .0005 | .004 .001 | 4:4:39 | B. 70"J.D. | 28032 | .0065 .0025 | .007 .0025 | .006 .002 | .006 .003 | .006 .0025 | .0065 .001 | 1 &6 +1 12:4:39 | B. 56 D.G. | 36367 | .007 .001 | .007 .002 | .007 Nil | .007 .001 | .006 .0005 | .006 .0005 | 2 +1. 12:4:39 | B. 63 B.N. | 38968 | .005 .001 | .0045 .0005 | .005 .0015 | .004 .001 | .003 .0005 | .0045 .001 | 1 +2. 12:4:39 | B.148"L.S. | 13674 | .006 .002 | .006 .002 | .0055 .0015 | .006 .002 | .004 .001 | .0035 Nil | 13:4:39 | B.148"K.T. | 18377 | .006 .0025 | .006 .0005 | .007 .0025 | .004 .0005 | .003 .001 | .0035 Nil | 13:4:39 | B. 52 A.H. | 25097 | .005 .001 | .005 .0005 | .007 .0025 | .004 .0005 | .0055 .0015 | .004 .001 | 13:4:39 | B. 16 "K.T. | 10321 | .004 .002 | .0045 .0015 | .0045 .002 | .0045 .001 | .0045 .0015 | .0045 .0015 | 2,5,&6 + ½ 13:4:39 | B.155"H.M. | 22384 | .007 .0035 | .0095 .0035 | .0075 .0035 | .007 .002 | .0065 .0015 | .0075 .0015 | 1 &3 +1. Rebore. 13:4:39 | B.125"J.Y. | 26874 | .0085 .003 | .0045 Nil | .0065 .002 | .008 .005 | .006 .0025 | .007 .002 | 2&5&6 + ½ Rebore. 14:4:39 | B.155 C.W. | 56280 | .006 .0005 | .008 .001 | .008 .0005 | .008 .0015 | .006 .0005 | .0065 .0005 | 1 +1. Rebore. 14:4:39 | B.192 A.H. | 9183 | .004 .0005 | .0045 .0015 | .005 .0015 | .003 .001 | .003 .0005 | .0035 .0005 | All +10 (H.78) 14:4:39 | B.177"C.P. | 28936 | .005 .002 | .0045 .0015 | .005 .002 | .004 .001 | .004 .001 | .004 .001 | 17:4:39 | B.168"I.S. | 20684 | .008 .004 | .007 .002 | .006 .001 | .006 .001 | .0065 .0025 | .0065 .001 | 2,4&5 + ½ 17:4:39 | B.129 E.I. | 31962 | .009 .001 | .011 .002 | .010 .002 | .009 .002 | .009 .002 | .007 .0005 | All +20(W).Rebore. 18:4:39 | B. 14"J.D. | 19508 | .003 .001 | .005 .002 | .0035 .001 | .0035 .0005 | .003 .0005 | .002 .0005 | All +10(W) 18:4:39 | B.145 A.E. | 19960 | .0015 Nil | .002 Nil | .0025 .0005 | .002 .0005 | .002 Nil | .0045 .0005 | 18:4:39 | B.195"K.U. | 20048 | .006 .001 | .005 .001 | .006 .002 | .005 .001 | .004 Nil | .0045 .0005 | All +10(W) 18:4:39 | B.185"I.E. | 5783 | .0015 Nil | .002 .0005 | .0025 .0005 | .002 .0005 | .0015 .0005 | .002 .001 | All +10(W) 18:4:39 | B.199 E.I. | 38354 | .007 .001 | .010 .003 | .009 .003 | .0065 .001 | .0065 .002 | .0055 .0015 | 2 + ½ 18:4:39 | B. 10"K.T. | 13352 | .005 .002 | .006 .0015 | .005 .0015 | .0045 .001 | .005 .001 | .0045 .0005 | 4+½,6+1,3+2. 18:4:39 | B.175"J.Y. | 20142 | .0055 .001 | .0075 .0035 | .007 .0035 | .006 .001 | .0055 .001 | .0055 .001 | All +10(H.95)Rebore. 18:4:39 | B.189 E.I. | 16323 | .0035 .001 | .0035 .0005 | .004 .0015 | .003 .001 | .003 .0015 | .002 Nil | Rebore. 19:4:39 | B. 94"J.D. | 36452 | .0055 .0015 | .008 .0035 | .008 .003 | .009 .0005 | .0055 .0015 | .0055 .0015 | 1 &2 +1. 19:4:39 | B. 26 C.R. | 41638 | .005 .001 | .005 Nil | .0065 .0015 | .004 .001 | .005 .0015 | .0055 .0015 | 19:4:39 | B.134 E.F. | 31956 | .007 .003 | .0055 .001 | .006 .002 | .005 Nil | .0045 .001 | .0045 .0005 | 19:4:39 | B.108 E.F. | 39010 | .0125 .005 | .012 .003 | .014 .007 | .013 .004 | .011 .005 | .0115 .0055 | Rebore. 20:4:39 | B.220"G.I. | 30028 | .008 .0025 | .009 .0045 | .008 .0025 | .0095 .0035 | .0055 .0005 | .0055 .0005 | Rebore. | ||