Crews of upgraded MiG-31 fighter-interceptors will work out the practical tasks of a tactical flight exercise at maximum altitude, which began in a separate mixed aviation regiment of the Northern Fleet this week. The pilots will rise to the lower stratosphere above the Arctic at an altitude of about 17 thousand meters. This reported by Russian Ministry of Defence press-service.

During the exercise, the crews of fighter-interceptors will also work out joint actions with bomber aircraft to defeat the forces of a mock enemy at sea, on land and in the air.

The exercise was participated by the entire flight and engineering staff of the aviation regiment's divisions, as well as logistics and communications specialists, it involved ten Su-24 and five MiG-31 aircrafts. They will work out flights both day and night.

The main goal of the flight-tactical exercise is to improve the professional skills of pilots and develop tactical skills of joint actions.