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 showing torsional oscillation test results on a B.80 No. 3 engine with no damper.
Identifier | ExFiles\Box 132\1\ scan0134 | |
Date | 28th March 1939 | |
TORSIONAL OSCILLATION TESTS ON B.80 NO. 3 (2.75" DIA SHAFT.) NO DAMPER AMPLITUDE .65° 1200 R.P.M. AMPLITUDE .95° 3600 R.P.M. FIG. 3 J.R.S. 28.3.39 | ||