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 the governor characteristics for a Bentley V engine.
| Identifier | ExFiles\Box 168\3\ img081 | |
| Date | 22th February 1939 guessed | |
| BENTLEY V.{VIENNA} UNIT B III NO 5 CYL. HEAD EW 1949 PISTONS P.414. (.170 RAISED CROWN) C/R = 6.5:1 CAMSHAFT EX. 31550 INDN. SYSTEM B III (H4 CARBS) ① REQUIRED GOVERNOR CHARACTERISTICS. ⓐ DELCO - REMY. ⓑ ROLLS - ROYCE. DEGREES B.T.D.C. R.P.M. | ||