一、建造背景日海上自卫队为实施舰艇的对空射击训练,设计建造了可从舰上发射、回收高速靶机的训练支援舰。其首制舰为“吾妻”号,1969年11月建成服役,标准排水量1950吨。该舰不仅可遂行训练支援任务,而且可对舰队进行物资补给,舰上还装备了声纳、鱼雷发射装置,具有一定的战斗力。为适应舰艇武备导弹化后海上训练对高速靶机的需求,日本海上 First, the construction background Japan Maritime Self-Defense Force for the implementation of the ship's air shooting training, designed and built from the ship launch, recovery of high-speed target aircraft training support ship. The first ship for the “my wife”, completed in November 1969 service, the standard displacement of 1,950 tons. The ship not only can carry out training and support tasks, but also supplies to the fleet, the ship is also equipped with sonar, torpedo launchers, has a certain combat effectiveness. In order to meet the demand of naval training on naval training of high-speed target aircraft after naval weapon-guided missiles, Japan Sea