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 and table detailing the automatic and hand advance characteristics of an R Distributor and various Scintilla Magnetos.
| Identifier | ExFiles\Box 37\1\ scan 284 | |
| Date | 28th August 1924 | |
| AUTOMATIC ADVANCE CHARACTERISTICS OF R DISTRIBUTOR AND SCINTILLA MAGNETOS. TABLE OF AUTOMATIC AND HAND ADVANCE IN ENGINE DEGREES TABLE DATA: UNIT: DISTRIBUTOR, AUTOMATIC ADVANCE: 40°, HAND ADVANCE: 30° UNIT: SCINTILLA, AM6A, No 28531, AUTOMATIC ADVANCE: 21.3°, HAND ADVANCE: 12.7° UNIT: SCINTILLA, AM6A, No A8533, AUTOMATIC ADVANCE: 22°, HAND ADVANCE: 13.3° UNIT: SCINTILLA, AGLA, No 34903, AUTOMATIC ADVANCE: 25.3°, HAND ADVANCE: 12.7° AXIS LABELS: Vertical Axis: CAM ADVANCE (DEGREES) Vertical Axis Scales: DISTRIBUTOR, ENGINE, MAGNETO Horizontal Axis 1: MAGNETO ARMATURE SPEED R.P.M. Horizontal Axis 2: ENGINE SPEED R.P.M. Horizontal Axis 3: DISTRIBUTOR SPEED R.P.M. GRAPH KEY: DISTRIBUTOR. (1) SCINTILLA, AGLA, NO 34903. (3) SCINTILLA, AM6A, NO A8533. (2) SCINTILLA, AM6A, NO 28531. (2) OTHER TEXT: Top Right: BII. Bottom Right Handwritten: #164, 27-8-24, E.F. C., 28/8/24 | ||