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 from a prop shaft spline test comparing the thrust load vs torque for a Bentley Hardy-Spicer type and an R.R. Type.
| Identifier | ExFiles\Box 87\3\ scan0064 | |
| Date | 6th July 1936 | |
| PROP. SHAFT SPLINE TEST. THRUST LOAD (LBS.) 1000 900 800 700 600 500 400 300 200 100 0 TORQUE (LB. FT.) 100 200 300 400 500 BENTLEY. HARDY-SPICER. G.52089 PH.III R.R.TYPE. 6-7-36 | ||