roman svitanok, a military expert , a colonel of the reserve of the armed forces of ukraine , a military pilot-instructor dobrogo health, mr. roman, thank you for finding time for us, i wish everyone good health. thank you all and we ask ah first of all. we congratulate you today . as far as i understand, you are directly involved in this, but unfortunately there is also sad news that the planes collided our ukrainian pilots were killed in zhytomyr oblast, and in principle, mr. roman, can you explain how it happens there, that there are no special devices that can tell that someone is not flying there, someone is flying there, or how does it even happen between eyes when they collide airplanes l39 two lki i flew on them for a dozen and a half years , about 1,500 hours of flight time, i just used them to teach cadets to fly and santa pilots and teach singing. that they will collide like this, the planes can only during the operation, well, mainly during the operation of a group meeting, this is when there are two planes next to each other, and there are standard distance from the plane to the plane to roll at 70 50 by 70 m and there is a closed formation 3x4 m 3 * 4 m that's why the pla