Graph plotting sliding effort versus torque for various types of Peregrine propeller shaft splines.
| Identifier | ExFiles\Box 148\4\ scan0016 | |
| Date | 18th November 1932 | |
| PEREGRINE(Experimental Bentley car never produced / Aero Engine) PROPELLOR SHAFT SPLINES ALL TESTS TAKEN ON SHORT TYPE TUBES - R.R.S. 168 SLIDING EFFORT - LB TORQUE LB. FT. STANDARD S/N SPLINES HARDENED S/N S/ZN WHITE - METALLED | ||
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).