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 of governor curves for the Bentley 'V' engine, comparing different piston configurations.
| Identifier | ExFiles\Box 168\3\ img188 | |
| Date | 1st June 1939 guessed | |
| FIG I BENTLEY 'V' GOVERNOR CURVES DEGREES ON FLYWHEEL B.T.D.C. A 8 BV WITH 6.5:1 R.C. PISTONS B 8 BV WITH 7:1 R.C. PISTONS C 7 BV WITH 7:1 R.C. PISTONS D FINAL CURVE FOR PRODUCTION | ||