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).
Graph of spring rating tests, showing the effect of deflection due to shackle movement.
| Identifier | ExFiles\Box 67a\1\ scan0219 | |
| Date | 27th May 1925 guessed | |
| (10) SPRING RATING TESTS. γ I Effect of Deflection due to Shackle movement Corrected Bomb Loading Narrow Pad Shackle 10° Inward. Y-Axis: SPRING RATING LBS/IN, 200, 300, 400 X-Axis: TOTAL SPRING LOAD. LBS, 0, 300, 600, 900, 1200, 1500, 1800 | ||