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 dynamo output curves for a 40/50 HP model.
| Identifier | WestWitteringFiles\T\2July1929-December1929\ Scan189 | |
| Date | 14th December 1929 | |
| AMPERE OUTPUT OPERATING VOLTAGES 40/50 H.P. DYNAMO OUTPUT CURVES DYNAMO R.P.M. PHANTOM II CHASSIS M.P.H. WITH 11/41 AXLE & 33.0" TYRE DIA: 1. REPRESENTATIVE CURVE OF NB STANDARD (29 SLOT ARMATURE) MACHINE 8° 121° 2. REPRESENTATIVE CURVE OF MACHINE WITH 28 SLOT ARMATURE AND THINNER STAMPINGS PHANTOM AND SS{S. Smith} 9° 122° 3. MAXIMUM PERMISSIBLE CURVE OF MACHINE WITH 24 SLOT ARMATURE AND PROPOSED B ANGLE OF 18° C = 133° 4. REPRESENTATIVE CURVE OF 24 SLOT ARMATURE MACHINE 18° 136.5° SPECIFIED CURVE OF OUTPUT REQUIREMENTS FOR 40/50 H.P. S.S. DYNAMO I=0.2 B A | ||