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).
Page of calculations and diagrams related to moments of mass for a mechanical component.
| Identifier | ExFiles\Box 74\4\ scan0083 | |
| Date | 24th September 1923 guessed | |
| -2- 705 contd:- The mass M, was then removed and a mass M2 added at A in the direction AX until the line A B assumed a horizontal position. This mass M2 was 144 lbs. Now the moment of this about the centre equals moment of the engine mass about the centre. 18 7/8" W2 = 144 lbs 18 7/8 Z R = (144 x 18.875) / 641 = 4.25 R Q = 4.28 Tan 12° 25' = .945" WILKINSON MADE AT CROXLEY | ||