Blueprint for a proposed lightened flywheel design.
| Identifier | ExFiles\Box 5\6\ 06-page034 | |
| Date | 10th December 1927 | |
| RR PHONE 362 363.364. DERBY & R.R.LTD. 2 prints to Engine Dept 13.12.27. OPERATION MACHINE TOOL TOOL N° TABLE: A | B | C WEIGHT | 40.51 | 9.937 | 15.36 RADIUS OF GYRATION INS. | 6.656 | 6.084 | 5.59 POLAR MOMENT OF INERTIA lb.ins^2 | 179.4 | 366.4 | 478.8 STAMP: EXP'L ONLY DIMENSIONS & NOTES: 13.000 DIA. +10 -10 Tap: .375 or .4375 and fit special studs. 13.100 DIA. +10 -10 Fit locknut + rivet over 9.250 DIA. +10 -10 14.000 DIA. +10 -10 .675 +0 -1 1.300 +10 -0 .250 R. {Sir Henry Royce} .125 RAD. +10 -10 .250 RAD. +10 -10 60° .375 RAD See memo R2/M25-1127 TITLE BLOCK: PLACE ALL COPIES TO WORKS: PATT. T.O.: FORGE D.O.: S.R. B.D.: R. {Sir Henry Royce} R.D.: AMERICA COST. DRAWN TRACED CHECKED APPROVED LIMITS O.K. DATE: 10.12.27. SCALE: HEAT TREAT: BRINELL: MACHINE ALL OVER OR WHERE MARKED THUS STANTON. MATERIAL: SPEC. N° TITLE: Proposed Lightened Flywheel. G51212 LIGHTENED. | ||
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).