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).
Comparison of the moment of inertia for the E.A.C. and Goshawk clutch plates.
| Identifier | WestWitteringFiles\L\2Jan1924-March1924\ Scan33 | |
| Date | 2nd February 1924 guessed | |
| RATIO OF THE MOMENT OF INERTIA OF E.A.C. & GOSHAWK CLUTCH PLATES. E.A.C. CLUTCH PLATE. SECTION. AXIS .20 .075 .20 2.625 RAD. 2.670 RAD. 4.87 RAD. 7.00 RAD. GOSHAWK CLUTCH PLATE SECTION. AXIS OF ROTATION. .10 .06 .10 1.25 RAD. 2.05 RAD. 4.05 RAD. 5.3 RAD. I E.A.C. / I GOSHAWK = 5.6. OR - MOMENT OF INERTIA OF E.A.C. CLUTCH PLATE IS 5.6 TIMES THAT OF GOSHAWK | ||