By September, the North Korean aircraft had largely been swept from the sky.
"But what of the South Korean aircraft over North Korea?"
Japanese officials were particularly concerned when radar detected North Korean aircraft approaching.
Early in the afternoon, the North Korean aircraft returned in larger numbers to attack the air transports.
No additional North Korean aircraft were spotted in the area for the rest of the day.
Of the five North Korean aircraft dispatched, only two returned to their base.
Ground forces also downed a North Korean aircraft during a subsequent attack.
Only 16 North Korean aircraft were in the field, none of which were damaged by the airstrike.
North Korean aircraft would be bursting through that opening and into the skies above Wonsan in seconds now.
The KT-1 is the first completely indigenous Korean aircraft ever developed.