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众所周知,由于雷达存在低空盲区,并且低空和超低空的飞机回波易受地面目标干扰,以及现代飞机本身低空导航、轰炸技术的不断完善,使得低空和超低空突防和攻击成为现代战术空军的主要作战方式。越南、中东以及印巴战争的实践证明,低空和超低空入侵的飞机一般在300米高度以下,通常在海面上为50米,平原地区为60米,丘陵地区为120米。对付这样的入侵目标,低空导弹目前尚存在不少问题,如低空死区;对突然出现的目标反应慢(一般为6至8秒);设备复杂机动性差;造价昂贵不易大量装备。而带有简易单炮火控系统的小口径高炮(口径在40毫米以下)对付低空和超低空目标,却显示了它的独特优点:
It is a well-known fact that low-altitude and ultra-low-altitude air defense and attack have become the modern tactical air force because of the presence of low-altitude blind spots and the low and low-altitude aircraft echoes that are susceptible to ground-based interference and low-altitude navigation of modern aircraft themselves. The main mode of operation. The Vietnam, Middle East and India-Pakistan wars have proven that aircraft at low altitude and ultra-low altitude are generally below 300 meters in height, usually 50 meters above sea level, 60 meters in plain areas and 120 meters in hilly areas. To cope with such invaders, low-altitude missiles still exist many problems, such as low-altitude dead zone; slow response to sudden targets (usually 6 to 8 seconds); complex mobility equipment; expensive expensive difficult to large-scale equipment. However, the small-caliber AA gun with a simple single-gun fire control system (with a caliber of 40 mm or less) addresses the low-altitude and low-altitude targets but shows its unique advantages: