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).
Cylinder wear measurements taken during January 1939, showing amounts plus nominal and oval in thousandths of an inch.
| Identifier | ExFiles\Box 103\2\ scan0049 | |
| Date | 3rd February 1939 | |
| To By.{R.W. Bailey - Chief Engineer} c.to Mx.{John H Maddocks - Chief Proving Officer} Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} ✓ file. W/Kingsbury. 3rd: February 1939. PARTICULARS OF CYLINDER WEAR DURING JANUARY, 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. ---|---|---|---|---|---|---|---|---|--- 2:1:39 | B. 66 D.G. | 27195 | .0075 .0005 .009 | .001 .0075 .001 | .0075 .0015 .006 | .001 .006 .001 | Rebore. 3:1:39 | B. 2 D.G. | 10644 | .002 .001 .002 | .0005 .002 .0005 | .002 .0005 .002 | .0005 .002 .0005 | 2 &3 +½ 3:1:39 | B. 50 B.N. | 28411 | .007 .0015 .0075 | .001 .008 .0025 | .007 .0015 .007 | .002 .006 .0015 | 2 +1 Rebore. 3:1:39 | B.139 E.J. | 14697 | .0025 .0005 .0025 | .002 .0025 .0005 | .0025 .0005 .002 | .002 .0005 .0025 | All +10 (H.107) 4:1:39 | B.102 F.B. | 21200 | .0075 .0035 .009 | .005 .008 .002 | .006 .002 .0065 | .002 .0065 .0015 | 4:1:39 | B.126 A.H. | 14418 | .0065 .003 .007 | .0035 .006 .0015 | .004 .0005 .005 | .0015 .004 .001 | All +15 (H.73) 5:1:39 | B. 7 A.H. | 10871 | .002 .0005 .0025 | .0005 .002 .0005 | .0036 .0005 .004 | .0015 .0025 .001 | All +10 (H.68) 5:1:39 | B.190"I.S."| 9766 | .0025 .0005 .0035 | .002 .0036 .001 | .0035 .001 .0025 | .0005 .004 .002 | 5:1:39 | B. 1 E.J. | 24027 | .007 .003 .006 | Nil .007 .004 | .005 .002 .005 | .0015 .0045 .002 | All +10 (H.10)Rebore 6:1:39 | B.121"K.U."| 9381 | .004 .002 .004 | .001 .004 .0005 | .0035 .0005 .003 | .0025 .0025 .0005 | 4 +1 6:1:39 | B. 63 C.W. | 29697 | .0055 .001 .0085 | .0015 .0055 .001 | .0035 .0005 .004 | .001 .0035 .001 | All ex2,+ 1. 6:1:39 | B. 14 C.R. | 58365 | .012 Nil .0125 | .0135 .0015 .010 | .0015 .010 .008 | .001 .008 .001 | 6:1:39 | B. 77 E.J. | 17023 | .0055 .003 .006 | .0025 .0055 .001 | .0055 .0025 .004 | .0005 .0045 .001 | 6:1:39 | B. 80"H.K."| 18827 | .0085 .0045 .0085 | .003 .008 .004 | .0075 .0035 .0055 | .008 .0035 .0035 | 6:1:39 | B. 53 F.C. | 28937 | .0075 .002 .0095 | .0035 .008 .002 | .0065 .0015 .0065 | .0065 .0005 .005 | Rebore. 7:1:39 | B.196 F.B. | 15606 | .003 Nil .004 | .001 .0045 .0005 | .004 .0005 .003 | .0035 .0005 .0035 | 9:1:39 | B.121"J.Y."| 10062 | .005 .001 .0065 | .002 .006 .001 | .007 .0015 .0075 | .0025 .007 .002 | 2 &3 +½ 9:1:39 | B.199"J.Y."| 19302 | .0045 .0005 .005 | .001 .004 Nil | .0045 .0005 .0055 | .0025 .004 .0005 | 9:1:39 | B. 9"H.M." | 26101 | .0115 .0005 .013 | .007 .011 .002 | .0105 .003 .0105 | .009 .0015 .009 | Rebore. 9:1:39 | B.191"H.M."| 27040 | .0075 .0035 .0075 | .003 .006 .0015 | .008 .0035 .006 | .0065 .0035 .0015 | 9:1:39 | B.131 F.C. | 21702 | .006 .002 .005 | .0015 .0045 .001 | .0045 .0015 .0036 | .001 .004 .0015 | All +10 (H.90) 10:1:39 | B.203"G.P."| 14761 | .0025 .001 .004 | .001 .003 .0015 | .0025 .0005 .002 | .0005 .003 .0005 | 10:1:39 | B.201"J.Y."| 27575 | .006 .002 .005 | .001 .005 .0015 | .005 .001 .006 | .0015 .0045 .0015 | All +1 11:1:39 | B.167 E.J. | 54269 | .007 .0035 .008 | .002 .009 .004 | .007 .003 .004 | Nil .005 .001 | Rebore. 11:1:39 | B.171"H.M."| 29137 | .008 .003 .0115 | .0065 .011 .005 | .011 .005 .008 | .001 .009 .003 | 1,5&6 +1.Rebore. 12:1:39 | B.153 S.L. | 47674 | .008 .0005 .011 | .0025 .011 .0025 | .009 .0015 .007 | .0065 .001 .001 | 12:1:39 | B. 82"T.T."| 14920 | .0025 .0005 .0025 | .0015 .0025 Nil | .0025 .0005 .002 | Nil .0025 .0005 | 2,5&6 +½ 12:1:39 | B. 44"I.S."| 13145 | .008 .0025 .008 | .007 Nil .007 | .0065 .0005 .0065 | .0065 .0005 .005 | Rebore. 14:1:39 | B. 67 D.K. | 28020 | .0045 .0005 .0035 | .0025 .007 .001 | .001 Nil .002 | .001 .0005 .0005 | 2,4&5 +1,3 +1½. 16:1:39 | B. 70"T.L."| 25959 | .006 .0005 .0065 | .0025 .008 .002 | .005 .002 .005 | .002 .006 .003 | 1 &6 +1. 17:1:39 | B.190 D.G. | 43938 | .010 .0025 .0105 | .002 .0095 .0015 | .008 .001 .007 | .001 .006 Nil | Rebore. 17:1:39 | B.121"H.M."| 19698 | .0035 .0015 .004 | .002 .003 .0005 | .0025 .0015 .002 | .002 .0005 .002 | All +10 (H.79) | ||