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(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 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(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) 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(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) = 5.6. OR - MOMENT OF INERTIA OF E.A.C. CLUTCH PLATE IS 5.6 TIMES THAT OF GOSHAWK(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) | ||
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).