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).
Blueprint graph plotting load and pressure against RPM for an engine's centre main bearing.
| Identifier | ExFiles\Box 116\1\ scan0048 | |
| Date | 11th July 1938 guessed | |
| 100 x 120 x 4 ENGINE (TYPE ) CENTRE MAIN BEARING POUNDS LOAD & PRESSURE (LBS/IN²) 0 1000 2000 3000 4000 5000 6000 R.P.M. F (CRANK) INERTIA LOAD TOTAL BRG. PRESSURE C.F. (BIG END) NET BRG AREA 4.45 IN² DENNIS BROS. LTD. GUILDFORD. | ||