The SDK documentation contains a table titled, `drag_coef_zero_lift_mach_table`. However, in the flight_model.cfg file for the default airplanes I checked, this table name is `drag_coef_zero_lift_mach_tab`. After running a quick check, that latter table name appears to be what is coded in the sim as changing values in a table of that name changes the drag coefficient for a given condition. Changing values in a table using the ...table" name does not appear to have any effect.