Tests revealed that the gunner, who was trying to get a visual on his attacker and manipulate the turret controls, had to uate two screens, his sight and the radar indicator.

• 测试表明炮手，他要保持对攻击目标的观察和操作炮塔控制机构，就必须使用两个显示屏，他的瞄准具和雷达指示器。