They don't have the precise control we have at the lower speed. This amount of our mixture is too expensive. We spray 10 to 20 hectares per flight. They normally spray 10 to 20 hectares per flight also. Next, our system includes training.
Many companies spray all day.
We teach the people to be ready to spray at first light. Then we only spray till the wind goes over 12 mph or until the thermals start lifting the spray. Then we stop till the evening. Rest in the afternoon or do maintenance on the aircraft then we spray till dark. This is the way it should be done with all aircraft, but the normal AG planes think that with the extra water they can give the crop a bath.