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 for various chassis during October 1938.
| Identifier | ExFiles\Box 103\2\ scan0069 | |
| Date | 2nd November 1938 | |
| To/By.{R.W. Bailey - Chief Engineer} c/o Mx.{John H Maddocks - Chief Proving Officer} Rm{William Robotham - Chief Engineer}/G&H file W/Kingsbury. 2nd: November 1938. PARTICULARS OF CYLINDER WEAR DURING OCTOBER 1938. Showing 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. 1:10:38 | B.192"H.K." | 29710 | .008 .002 | .006 .001 | .006 .0015 | .008 .002 | .005 .001 | .007 .0025 | 2,3,5&6+½,1 +2 3:10:38 | B.183"D.K." | 20216 | .005 .001 | .005 .001 | .005 .0015 | .005 .002 | .004 .0005 | .0045 .001 | 4:10:38 | B.141 D.K. | 30507 | .005 .0015 | .004 .001 | .005 .002 | .004 .001 | .0035 .0005 | .003 .0005 | 5:10:38 | B.141 F.C. | 19197 | .003 .001 | .003 .001 | .003 Nil | .003 .0005 | .0025 .0005 | .0025 Nil | 5:10:38 | B.198 "H.K."| 12375 | .0025 .0005 | .002 .0005 | .002 Nil | .003 .0005 | .002 Nil | .002 .001 | 5:10:38 | B. 60 "H.K." | 20008 | .003 .002 | .004 .001 | .004 .0005 | .0035 .0005 | .0045 .0015 | .003 .001 | 7:10:38 | B. 29 D.K. | 22314 | .005 .0005 | .0055 .0005 | .005 .001 | .004 Nil | .004 .0015 | .0035 .0015 | 2,3,5&6 +1, 1+1½. 8:10:38 | B.102"G.A." | 11627 | .0025 .001 | .002 .0005 | .003 .001 | .0025 .001 | .002 .0005 | .002 .001 | All +15(H72) 8:10:38 | B. 75 B.N. | 64000 | .0055 .002 | .006 .0005 | .0065 .002 | .006 .001 | .005 .001 | .005 .001 | 1 +1 Rebore. 10:10:38 | B.100 C.R. | 28790 | .007 .002 | .006 .0015 | .007 .0015 | .006 .001 | .005 .001 | .005 Nil | 2 &4 +1 10:10:38 | B.118 A.H. | 23133 | .005 .0005 | Nil .001 | .0055 .0005 | .0045 Nil | .004 Nil | .0045 .0005 | 11:10:38 | B.199"G.P." | 24539 | .007 .003 | .005 .001 | .005 .001 | .005 .001 | .0045 .0005 | .005 .001 | 11:10:38 | B. 34"G.A." | 46836 | .0095 .0055 | .0125 .006 | .014 .009 | .0105 .007 | .008 .003 | .007 .0025 | Rebore. 11:10:38 | B. 97"K.U." | 9130 | .0025 .001 | .0025 .0005 | .0035 .001 | .003 Nil | .0025 .0005 | .0025 .002 | 3 +½, 4 +1. 12:10:38 | B. 68 C.R. | 43384 | .006 .001 | .0065 .002 | .0065 .002 | .004 Nil | .0045 .001 | .004 .001 | 4 &6 +1. 12:10:38 | B.145"G.P." | 19550 | .0075 .004 | .0065 .0035 | .0045 .0015 | .0045 .001 | .0035 .0005 | .0035 .0005 | 12:10:38 | B. 98"K.T." | 20610 | .0045 .002 | .0035 .0005 | .0035 .0005 | .005 .0005 | .004 .0005 | .004 .0005 | 13:10:38 | B.197"H.M." | 11121 | .004 .0015 | .0035 .001 | .004 .001 | .0025 Nil | .0025 .001 | .0025 .001 | 1 &2 +½. 13:10:38 | B. 62"K.T." | 21841 | .004 .0015 | .003 .0005 | .0035 .0005 | .0035 .0005 | .0025 Nil | .003 .001 | 1 +1 13:10:38 | B.166"K.T." | 24177 | .005 .0025 | .0045 .0015 | .004 .001 | .004 .0015 | .0035 .001 | .0035 .002 | 2,3&4 +½, 5&6 +1. 13:10:38 | B. 57 F.C. | 38785 | .011 .004 | .012 .007 | .0095 .0025 | .0065 Nil | .008 .001 | .008 .001 | Rebore. 13:10:38 | B.123"H.M." | 23837 | .0055 .002 | .005 .002 | .006 .002 | .0045 .0015 | .004 .001 | .003 Nil | 2,3,4,&5 +½, 5 +1. 19:10:38 | B.195"K.U." | 12603 | .004 .0025 | .0035 .0005 | .004 .001 | .004 .001 | .003 .0005 | .003 .0005 | 19:10:38 | B.122 F.S. | 48553 | .005 .002 | .005 .001 | .0045 .0005 | .004 .001 | .003 .001 | .003 .0015 | 3 &6 +1. 19:10:38 | B. 65"K.U." | 13184 | .0035 .001 | .0045 .0015 | .004 .001 | .004 .001 | .003 .001 | .003 .001 | 19:10:38 | B. 82 A.H. | 44753 | .010 .004 | .010 .001 | .012 .003 | .008 .0015 | .0075 .0025 | .005 .0005 | 20:10:38 | B. 84"K.T." | 11636 | .005 .001 | .0045 .001 | .0045 .0005 | .005 .0015 | .004 .001 | .004 .0005 | 1,2,&3 +½ 20:10:38 | B. 69"H.M." | 10759 | .004 .0015 | .003 Nil | .0035 .001 | .0035 .0005 | .0035 .0005 | .0035 .001 | 20:10:38 | B.170"K.T." | 9386 | .0045 .001 | .0055 .001 | .0055 .0005 | .006 .002 | .005 .001 | .005 .0015 | 1,2 &3 +½ 21:10:38 | B. 93"G.P." | 25983 | .0105 .0055 | .008 .004 | .007 .002 | .008 .004 | .006 .0015 | .006 .002 | 21:10:38 | B.184"I.S." | 8971 | .002 .0005 | .002 .0005 | .002 Nil | .002 Nil | .002 .0005 | .0025 .001 | 1 +½, 4 +1. | ||