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).
Comparative analysis of flywheel dynamics at various speeds using visual traces.
| Identifier | WestWitteringFiles\V\2January1931-April1931\ Scan030 | |
| Date | 2nd February 1931 guessed | |
| STANDARD FLYWHEEL DOUBLE BEARING A 2700 3000 3400 3550 W.W. FLYWHEEL DOUBLE BEARING B 3100 3400 3600 3700 STANDARD FLYWHEEL UNDER STANDARD CONDITIONS C STATIONARY 2500 2600 2800 3200-> This is also heritage of IMAGE up To 3000 FOR A up To 3600 = B up To 3300 = C | ||