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 data sheet for Goshawk Pendulum Levers, recording torsion, deflection, and permanent set under increasing weight.
| Identifier | ExFiles\Box 49\4\ Scan259 | |
| Date | 10th December 1930 | |
| X4264 X205 X4264 X4263 GOSHAWK - PENDULUM LEVERS. Test hanging weights on ball end. Weight. | Torsion. | Deflection. | Permanent set. Lever End. | Ball End. 200 lbs. | .043 | .038 | | 300 " | .116 | .105 | | 400 " | .158 | .144 | | 500 " | .221 | .210 | | 600 " | .291 | .286 | .005 | .005 700 " | .363 | .330 | .015 | .015 800 " | .430 | .402 | .030 | .030 900 " | .523 | .474 | .036 | .036 1000 " | .595 | .536 | .056 | .056 1100 " | .654 | .595 | .060 | .062 1200 " | .723 | .670 | .061 | .065 1300 " | .795 | .715 | .072 | .078 1400 " | .824 | .755 | .068 | .073 1500 " | .855 | .785 | .077 | .086 1600 " | .915 | .840 | .081 | .093 1700 " | 1.080 | .944 | .110 | .122 1800 " | 1.200 | 1.064 | .198 | .204 1900 " | 1.444 | 1.376 | .207 | .213 2000 " | 1.604 | 1.498 | .296 | .302 R.R. 586A (100 T's) S. H. {Arthur M. Hanbury - Head Complaints} '19S. 10-12-301-G. {Mr Griffiths - Chief Accountant / Mr Gnapp} 1947 | ||