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 the maximum and minimum ignition advance curves required for the E.A.C.II engine.
| Identifier | ExFiles\Box 37\1\ scan 278 | |
| Date | 22th August 1924 | |
| E.A.C.II. CURVES SHOWING THE IGNITION ADVANCE REQUIRED ON E.A.C.II. ENGINE. (FIGURES SUPPLIED BY Hs.{Lord Ernest Hives - Chair}) 22-8-24 THESE CURVES DEFINE THE LIMITS OF IGNITION ADVANCE AS EXPERIMENTALLY DETERMINED, OVER WHICH MAXIMUM POWER IS PRACTICALLY MAINTAINED AT EACH SPEED. Y-Axis: ENGINE DEGREES B.D.P. X-Axis: ENGINE SPEED R.P.M. Curve Labels: Maximum, Minimum Bottom Right: NEW ISSUE Bottom Right: H.E.V. / 28-11-24 Bottom Right: E.F.C. / 27/11/24 | ||