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).
Model crank torsion test results showing angular deflections for short and long crank pins.
| Identifier | ExFiles\Box 85\5\ scan0087 | |
| Date | 2nd January 1935 | |
| HS{Lord Ernest Hives - Chair} 1580/1 MODEL CRANK TORSION TESTS - DEFLECTIONS. - HS{Lord Ernest Hives - Chair} 1581 SHORT CRANK PIN | LOAD APPLIED LBS | TORQUE LB-FT | - ANGULAR DEFLECTIONS - | |---|---|---|---|---|---| | | | 1. | A.{Mr Adams} | B. | C. | D.{John DeLooze - Company Secretary} | | 0 | 0 | - | - | - | - | - | | 50 | 75 | .1294° | .0669° | .0384° | .0498° | .1074° | | 100 | 150 | .2591° | .1381° | .0691° | .1151° | .2291° | | 150 | 225 | .387° | .200° | .096° | .176° | .348° | | 200 | 300 | .517° | .260° | .123° | .237° | .467° | HS{Lord Ernest Hives - Chair} 1580 LONG CRANK PIN | | | | | | | | |---|---|---|---|---|---|---| | 0 | 0 | - | - | - | - | - | | 50 | 75 | .2176° | .1606° | .0346° | .0461° | .1946° | | 100 | 150 | .4433° | .3293° | .0763° | .0993° | .3973° | | 150 | 225 | .668° | .475° | .113° | .153° | .600° | | 200 | 300 | .8938° | .6268° | .1448° | .2138° | .8238° | Diagram Labels: 2. FIXED END B. C. A.{Mr Adams} D.{John DeLooze - Company Secretary} 1. | ||