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 detailing specifications and performance curves for a Bentley ignition system.
| Identifier | ExFiles\Box 3\4\ 04-page291 | |
| Date | 1st May 1923 | |
| UNIT C.O BENTLEY IGNITION Rm{William Robotham - Chief Engineer} B15 M/Y 23 COMP RATIO 6.5:1 (TREP INLETS) CAMSHAFT EB9129 ("739") 2 S.U. (1 3/4") CARBS ON PIPES EB9292/3 (MOD Exh D9451) IGNITION GOVERNOR EB6880 (MOD AEC 1378) GOVERNOR MOVEMENT 8° (+1/2°) AUTO ADVANCE 23° FLYWHEEL ① IGN ADVANCE FOR MAX POWER ② GOVERNOR SPRINGS Ex 11173 ③ Ex 11174 DEGREES B.T.D.C. (FLYWHEEL) ENGINE R.P.M. | ||