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 and diagram illustrating the results of tests on a 20 HP rear damper lever.
| Identifier | ExFiles\Box 105\3\ scan0151 | |
| Date | 3rd December 1930 | |
| SHEET 3. 20 H.P. REAR DAMPER LEVER TESTS 17 G IV DAMPER AS USED FOR INDICATOR DIAGRAMS. OVAL LEVER C B B-A A C-B BALL PIN LOAD LBS .250 .200 .150 .100 .050 20 40 60 80 100 120 CLOCK ATTACHMENT ARM SECTION OF FRAME WHEN RUNNING DAMPER AT 450 R.P.M. 1 1/4" STROKE, A CLOCK INDICATOR PLACED AT ONE END OF ONE EYE MEASURED .003 MOVEMENT ON SUPPORTS. | ||