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 showing the load on an end main bearing at 2850 RPM and 206 M.E.P.
| Identifier | ExFiles\Box 115\2\ scan0391 | |
| Date | 17th June 1941 guessed | |
| LOAD ON END MAIN BEARING 2850 R.P.M 206 M.E.P UNBALANCED BALANCED SCALE 1" = 1000 LBS. No. 2 Scale Rings: 2000, 4000, 5000 Plot Point Numbers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71 | ||