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).
Governor specifications for B80 to DB2291.
| Identifier | ExFiles\Box 168\3\ img247 | |
| Date | 13th March 1940 | |
| 6119 Governor Specification for B80 to DB{Donald Bastow - Suspensions}2291. Advance in Degrees. Speed RPM. Start 150.175 1½° + 1° 250 5½° + 1° 500 9° + 1° 750 11° + 1° 1000 13° + 1° 1250 14½° + 1° 1500 15½° + 1° 1750 15¾° + 1° 2000 Looking on cam end direction of rotation is clockwise. OK H Hallam HF{H. W. Frost - Coachwork Inspector} | ||