First time fly it, i found the speed meter show a range from 0~320 mph,but the default discreption is 120 mph only ?
Don’t have it installed, but have you checked the ASI units?
It looks like the airspeed indicator shows km/h, not kts.
Yes it is km/h and the white area is wrong.
Don’t understand what the speed range has to do with the white range.
Nothing, that was just an additional hint. So you can also set the flaps earlier 