Attached are some files which should be of interest to EVDL folks; operation
curve, outline dwg, and typical test report for a 9" series field, 72 volt
Kostov motor.  The data came from the manufacturer.  BTW, the Kostov
nomenclature describes the motor;  Model "ET 12/7,2/50" is a 12 kW, 72 volt,
5000 rpm unit.

http://www.ziggr.com/ftp/evl/Kostov_ET12_curve.jpg
http://www.ziggr.com/ftp/evl/Kostov_ET12_dwg.jpg
http://www.ziggr.com/ftp/evl/Kostov_ET12_test_rpt1.jpg
http://www.ziggr.com/ftp/evl/Kostov_ET12_test_rpt2.jpg