结论是80式机枪的射击精度、寿命完全能满足战术、技术使用要求，优于67式机枪，只有在慢速的精度射时，67-1才会打得比80式好。 但随后在全国几大军区同时作性能对比试验时，在“实战射击”（练习2和练习4）中，80式都和67-1式相当，甚至略占优。 所以战士们得出了“80式适合战斗，67式适合考核”的结论。 最后67-1式机枪使用了80式机枪的三脚架并进行了其他方面的减重，改进出更轻的67-2式机枪（三脚架状态从25kg减至15.5kg），但重量上仍然比80式重（80式三 …

2024年3月17日 · 在作为重机枪的配置下，67式能够有效压制800米范围内的目标，这一性能显著优于许多当时解放军所装备的轻机枪，其火力压制性和精度也达到了较高标准。 67式通用机枪的设计团队在开发过程中，力求在继承53式重机枪火力优点的基础上，对重量和体积进行优化。

Clear Zones (CZ) and Accident Potential Zones (APZ) Checklist for HUD or Responsible Entity ... 1. Is the Project located within 2,500 feet of a civil airport or 15,000 feet of a military airfield? Maintain a map that identifies airports in your project ERR. The regulations only apply to military, primary and commercial service airports.

Designation of safety zones around the airfield and restriction of incompatible land uses can reduce the public’s exposure to safety hazards. The AICUZ program includes three safety zones: the CZ, APZ I, and APZ II.

Purpose To avoid exposing people to hazards of living in a Runway Clear Zone (RCZ) - civilian airport and Accident Potential Zone (APZ)/ Clear Zone (CZ) - military airport 24 CFR Part 51.300 3 Definition - Airport

3.4 Accident Potential Zones rture flight paths have significant potential for aircraft accidents (see Appendix B). Based on these analyses, DOD has defined three levels of relatively hi accident potential: the Clear Zone (CZ), Accident Potential Zone (APZ) I and APZ II. …

2023年11月6日 · 该机枪采用了7.62×54毫米R口径的子弹，这是中国人民解放军的制式步枪弹，具有威力大、射程远、弹道稳定等优点。 该机枪使用弹链或弹鼓供弹，弹链由机匣右侧进入，弹壳在左侧排出，弹鼓可装100发子弹，可快速更换。 该机枪采用了气动式自动方式，利用发射时产生的高压气体推动枪机往复运动，完成进弹、射击、退弹、排膛等动作。 该机枪还设有气体调节器，可以根据不同的环境和弹药，调节导气量，保证机枪的正常工作。 该机枪采用了偏转式枪机闭 …

ACCIDENT POTENTIAL ZONE (APZ) (1) APZ I. Is described as being 3,000 feet wide (1,500 feet to each side of the runway centerline) and extending outward from the end of the CZ an additional 5,000 feet. This zone has a reduced accident potential. (2) APZ II.

67式7.62mm轻重两用机枪采取单程进弹方式，与53式7.62mm重机枪相比，其供弹机构结构简单，质量轻，机动灵活性好，适应各种地形射击；一枪多用，设有夜间瞄准装置，适于夜战。

The CZ, the area closest to the runway end, is the most hazardous. The overall risk is high enough that DOD generally acquires the land through purchase or easement to prevent development. APZ I is an area beyond the CZ that possesses a significant potential for accidents. APZ II is an area beyond APZ I having