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 showing the index of crankshaft bending in an experimental engine under different loads and speeds.
| Identifier | ExFiles\Box 127\4\ scan0029 | |
| Date | 13th February 1936 | |
| INDEX OF CRANKSHAFT BENDING IN EXPERIMENTAL ENGINE #5050-28-H.{Arthur M. Hanbury - Head Complaints} The values indicated are the maximum difference between the amplitude of a point 10" out from the front crankshaft bearing center line on a stiff shaft attached to the front of the crankshaft system when the engine was idling at 500 R.P.M. and when it was operating at the speed and load specified. LEGEND: o----o Engine operating with 20 lbs. beam load (1.75' dynamometer arm). x----x Engine operating at full load. AMPLITUDE INCHES ENGINE R.P.M. Sheet No. 7. No. Sheets 4. W.O. No. 6205-3. Date 2-13-36. File Number #6. Reported 4-14-36. | ||