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 plotting Sliding Effort in pounds against Torque in pound-feet for a Peregrine Prop Shaft with hardened splines.
| Identifier | ExFiles\Box 179b\2\ img042 | |
| Date | 8th October 1932 | |
| HS{Lord Ernest Hives - Chair} 738 PEREGRINE PROP. SHAFT 8-10-32 RR.SCH 168/9. SHORT TYPE. HARDENED SPLINES. SLIDING EFFORT - LB TORQUE LB. FT. KB | ||