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).
Test report detailing the specifications of different front road springs used for torsional deflection tests.
Identifier | ExFiles\Box 72\3\ scan0088 | |
Date | 19th August 1924 guessed | |
-2- TORSIONAL DEFLECTION OF FRONT ROAD SPRINGS. SPRINGS USED FOR THESE TESTS :- No. of spring. | Std. 40/50. | No.3 | No.4. Piece No. | F.4634 | F.71244 | F.71568 Type. | 1150 | 1150 | 1150 Length. | 42" | 43½" | 43½" Period with load of 1150 lbs. | 104 oscl:min. | 120 oscl:min. | 107 oscl:min. contd :- | ||