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).
Technical drawing of a proposed lightened flywheel.
| Identifier | WestWitteringFiles\S\March1928-May1928\ Scan100 | |
| Date | 10th December 1927 | |
| RR 773(300)(DC 306.5.10.27)N&G,LTD 2 prints were pd 13.12.27 Nº OPERATION MACHINE TOOL TOOL Nº TABLE: WEIGHT LBS.: A 4.051, B 9.837, C 15.36 PRINCIPAL RADIUS OF GYRATION: A 6.656 INS., B 6.094 INS., C 5.59 INS. POLAR MOMENT OF INERTIA: A 179.4 LBS:INS², B 365.4 LBS:INS², C 478.8 LBS:INS² Exp OMT REPLACE ALL COPIES TO: WORKS. PATT. T.O. FORGE D.O. S.R. R.D. R.{Sir Henry Royce} T.D. AMERICA. DRAWN. COST. TRACED. CHECKED. APPROVED. LIMITS O.K. DATE. 10-12 27- USED ON Nº OFF SECTION SCALE HEAT TREAT BRINELL STANTON. TITLE: Proposed Lightened Flywheel. MATERIAL SPEC Nº MACHINE ALL OVER OR WHERE MARKED THUS DRAWING ANNOTATIONS: 13.000 DIA. +10 -10 Tap .375 or .4375 and fit special studs. 1.675 +0 -1 2.625 +0 -1 .250R .125 Rad. +10 -10 60° .250 Rad. +10 -10 13.100 DIA. +10 -10 B.F.F. .375 RAD +10 -10 Fit lock nut flush over .375 R .375 +10 -10 1.125 +0 -1 9.250 DIA. +10 -10 14.000 DIA. +10 -10 See memo R.{Sir Henry Royce}/M 28.11.27 G51212 LIGHTENED STAMP: -ROYCE Ltd- PRINT ROOM 14 APR 1928 DERBY | ||