 Even if the aircraft is only grazed, it will likely begin to smoke heavily, indicating severe damage.A sure-fire way to avoid flak fire is to fly very low; depending on the elevation of the turret and the angle of the gun, the shell may be able to go higher than the operating ceiling of the target.Machine Gun turrets have a relatively low ceiling, given a turret at a reasonable elevation, an aircraft would likely be able to fly above the bullets unscathed.