Often there are provisions, outside a possible shot.
https://youtu.be/8bbuLIz0Wn8
This situation limits, perhaps 1 chance, on success of use of weapons. As on this video. To take restriction in a distance in the lock the plane is crossed with restriction of a viewing angle and loss of the lock for the purposes at the shortest distance. If the plane to lift 1500 meters, it begins to work even worse.
https://youtu.be/pmN2s4kWloY
In position of a body lying, the head without problems looks forward, the corner between an axis of the head and a back isn't clamped in a neck. When or standing on a knee in all growth, the neck clamps a head look corner up.
http://imgur.com/GbbUO81