我国拥有漫长的海岸线,最南端的南沙群岛远离大陆千余公里,为维护国家主权和海洋权益,不仅需要向有关海区派出舰艇执行任务,而且还要为巡逻舰艇提供空中保护,目前我国尚无航空母舰,且海军航空兵的陆基歼击机、强击机和战术轰炸机航程有限,并缺少空中加油手段,急需装备一种大航程、大载弹 Our country has a long coastline. The southernmost Nansha Islands are more than 1,000 kilometers far away from the mainland. To safeguard national sovereignty and maritime rights and interests, we not only need to send vessels to the relevant sea areas to perform their missions, but also provide air protection for patrol ships. At present, there is no aircraft carrier in our country , And naval aviation ground-based fighters, attack aircraft and tactical bomber limited range, and the lack of air refueling means, the urgent need to equip a large voyage, a large load