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).
Polar plot diagram illustrating the load on a journal due to a crank throw over one cycle at 2850 RPM.
| Identifier | ExFiles\Box 115\2\ scan0392 | |
| Date | 2nd February 1939 guessed | |
| 2850 R.P.M. 206 M.E.P LOAD ON JOURNAL DUE TO HALF ONE CRANK THROW FOR ONE CYCLE SHOWING THAT LOAD IS ON ONLY A SMALL PART OF JOURNAL. SCALE 1" = 1000 LBS No. 3 | ||