Rolls-Royce Archives
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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 output speed performance curves for a 48 coil 40/50 dynamo at 80°C.

Identifier  ExFiles\Box 163\6\  img091
Date  26th November 1930
  
40/50
3.
OUTPUT SPEED PERFORMANCE CURVES
OF
48 COIL 40/50 DYNAMO AT 80°C.
(19.5° 129°)
I. AT SCHEDULE TERMINAL VOLTAGES.
II AT A CONSTANT TERMINAL VOLTAGE OF 14.0.
III AS I BUT WITH FIELD RESISTANCE OF 33" OF 26 S.W.G. EUREKA WIRE (2.54 w).
DYNAMO R.P.M.
CHASSIS. M.P.H WITH 11/41 AXLE & 33.0" TYRE DIA.
C.A.P 25.11.30
E.F.C. 26.11.30
  
  


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