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).
Cross-section drawing, Section A-A, of a machined component with dimensions.
| Identifier | ExFiles\Box 2\4\ B002_X 127 128-page29 | |
| Date | 25th March 1933 guessed | |
| SEE OP LIST DRILL .1719 DIA 28 1/2 TPI - RH{R. Hollingworth} DEPTH OF TAPPING SEE POSITIONS ON G.100007 THE OIL TROUGH AS SHOWN ON G.100007 IS NOT REQUIRED SECTION A A BOSS X SHOWN HERE FOR CONVENIENCE. 1.025 +.10/-.10 .875 +.05/-.05 .175 +.10/-.10 .100 R .050 R .125 R .300 R 4.000 45° CHAMFER .025 +.10/-.10 AT 45° +.2°/-.2° 3.350 DIA +.0/-.10 2.525 DIA +.0/-.5 2.250 DIA 2.050 DIA +.10/-.0 2.250 DIA +.12/-.12 .900 .750 +.1/-.1 .700 +.25/-.25 .550 +.25/-.25 .200 | ||