639号远洋巡逻舰是一型以维护海上安全为主要任务的多用途舰艇,可以通过携带或更换任务模块,来执行不同的作战任务,例如护航,特种作战等等。639号远洋巡逻舰舰体采用钢结构建造,桅杆等部件采用复合增强材料。标准排水量2500吨,柴电推进,设计航速25节,续航力7500海里,12节,自持力45-55天,舰员编制80人。该舰的 The 639s ocean-going cruiser is a type of multi-purpose warship that is mainly responsible for the maintenance of maritime safety and can carry out various combat missions such as escorting, special operations and the like by carrying or replacing mission modules. 639 ocean patrol ship body constructed of steel, masts and other components using composite reinforced materials. Standard displacement of 2,500 tons, diesel-electric propulsion, design speed of 25 knots, cruising power of 7500 nautical miles, 12 knots, self-sustaining 45-55 days, 80 crew members. The ship’s