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 showing governor lag for a standard production Chassis 46 N.C, plotting engine RPM against notches on quadrant.
| Identifier | ExFiles\Box 66a\3\ scan0097 | |
| Date | 27th October 1926 | |
| GOVERNOR LAG. (CHASSIS 46 N.C) STANDARD PRODUCTION. 27.10.26 ENGINE R.P.M. 1500 1250 1000 750 500 250 NOTCHES ON QUADRANT DOWN UP | ||