The MGB Electric Sports Car

Analysis by Warren Winovich

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Figure 5. Economy of energy usage for the MGB electric sports car as a function of velocity. Values of economy are for driving at steady speeds over level roads. Economy exhibits a broad minimum for velocities from 20 to 25 mph. Below 23 mph, economy increases as motor efficiency falls to zero at zero velocity. Above 23 mph, economy increases as aerodynamic drag becomes the dominant retarding force. The high values found here for the electric-powered MGB are attributed to the high drag coefficient for the open roadster with exposed underbody surfaces.

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