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).
Performance curves for a tank carburetter under various configurations.
| Identifier | ExFiles\Box 25\1\ Scan040 | |
| Date | 14th February 1932 | |
| 20.25.IP UNIT C.S. TANK CARBURETTER E58553 RM{William Robotham - Chief Engineer} 71 ① COMPLETE CARB. E58553 ② E58370 REMOVED ③ AS (2) WITH E58391 & E51173 REMOVED ④ STANDARD 25 HP CARB (COMPLETE) COMP RATIO STD: CAMSHAFT E.S.7771 (DS) CYL HEADS E.S.2175. CARBURETTER PARTS: E58391, E58370, E51173 GRAPH AXES: B.H.P., B.M.E.P., R.P.M. TIMING DIAGRAM: TDC, BDC, 17°, 75°, 40°, 42B, (TAPPET CLEAR .020") | ||