The so-called "131-ton medium-Shanghai class patrol boat," that Western China 62 high-speed gunboats of the title (since the West was first found that the gunboats in Shanghai). The picture shows May 31, 2009, the North Korea's nuclear test, a North Korean fishing boats hiding behind the 62-type gunboat reconnaissance Yeonpyeong Island waters. South Korea's gunboats repeatedly accused North Korea of China and the Korean fishing boats to do a cover provocative in disputed waters.
South Korea and North Korea’s navy on the 10th morning in the western waters of the “northern boundary” exchange of fire took place near the incident. According to South Korea’s “Korean Daily” reported that 10 warships in the West Sea and South Korea exchanged fire after the withdrawal of North Korean ships is a 131-ton medium-Shanghai class patrol boat.
Reported that North Korea has Chongjin level (80 tons), the Shanghai level, the Qing-level (sounds, 420 tons), three or more patrol boat. Shanghai-class ships length 38.5 meters, maximum speed of 30 knots, which could accommodate more than 30 crew members. Equipped with 37 mm gun and 25 mm guns of two. 37 mm gun has a range of 5 kilometers per minute, capable of firing 180 shells, 25 mm gun has a range of 3 kilometers per minute, capable of firing 240 shells. The ship is equipped with 4-8 torpedoes, but no sonar submarine detection equipment, anti-submarine combat weak.
While South Korea’s Battle ships are two 1200-ton patrol ships and four 150-ton, “Steller’s sea eagle,” high-speed boats (two teams). South Korean Navy official said: “South Korean warships fired artillery shells is automatic, but the North Korean ships fired shells need to manually, the two sides fighting there is a gap.” Patrol boats of the main gun is the 76 mm gun, a maximum range of up to 16 km, per minute, capable of firing artillery shells 80-100. In addition, there are two per minute, capable of firing 300, maximum range of 8.7 kilometers of the 40 mm guns.
The exchange of fire, with North Korea high-speed ship captain nearest 37 meters, contained more than 40 mm and 20 mm guns of two. 40 mm gun’s maximum range is 4.5 km, the whole ship could be fired per minute shells 2700-3300.
Day inter-Korean naval warships to fire the main gun was an exchange of fire. South Korea’s Joint Chiefs of Staff official said: “The distance between two ships of about 3500 yards (3.2 km).”
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