Description: Type 645 oceanographic survey ship (Source: Chinese Internet).描述：645型海上调查船（来源：中国英特网）

The Type 645 is the oceanographic survey ship developed by the 708 Institute in the 1970s for the State Oceanic Administration (SOA). The ship was designed for scientific researches in marine hydrology, physics, marine meteorology, marine chemistry, marine geology, geomorphology, biology, etc. If necessary, the ship could also be used for military roles such as logistic support and intelligence. The first hull Xiangyanghong 9 was built in 1978, followed by two more hulls in the early 1980s. The fourth hull is operated by the PLA Navy for the electronic surveillance role.

中国645型是在1970年由708研究所为国家海洋局（SOA）设计的海洋调查船。该船被设计用于科学研究包括海洋水文学、物理学、海洋气象学、海洋化学、海洋地质学、地形学，生物学等。如果必需，该船也可以用于军事任务，像是后勤支援和情报。第一艘向阳红 9号在1978年建造，在1980年早期后续建造另外二艘。第四艘用于电子监视任务被PLA海军操作。

Design

The Type 645 has a full displacement of 4,435 tonnes. The main propulsion consists of two indigenous 9ESDZ43/82B diesel engines rated at 4,500hp (3,308kW), and four 640hp (470kW) diesel engines. The ship has a top speed of 18 knots, and a maximum range of 10,000nm (at 14 knots speed). The ship can travel in complex sea conditions and Class 4 ice-covered waters, and has a maximum endurance of 60 days.

设计

645型满载排水量4,435吨。主推进由二台额定4,500马力（3,308千瓦）国产9ESDZ43/82B型柴油发动机和四台640马力（470千瓦）柴油发动机组成。该船最高航速18节和最大航程10,000海里（以14节航速）。能在复杂海况下和4级封冻水域航行，而且最大续航力60天。

The ship has 16 laboratories, with a total area of 267 square metres; a 66 square metres specimen compartment, and a 84 square metres spare part compartment. A total of 12 special winches of various purposes are installed on the deck. The ship was equipped with China’s first 10,000m depth sounder, and the most advanced meteorology, communications, navigations, and scientific research equipments.

该船有16间实验室，总面积267平方米；一个66平方米样品舱，和一个84平方米备件舱。在甲板上安装总数为12个不同用途的专用绞盘。船装备中国第一部10,000 米回声测深器和最先进的气象、通信、导航和科学研究设备。

Description: Xiangyanghong 09 is the first hull of the Type 645 (Source: Chinese Internet).描述：“向阳红”（Xiangyanghong）09是645型的第一艘（来源：中国英特网）

Xiangyanghong 9

Construction of the first-of-class Xiangyanghong 9 began in October 1977 at Shanghai-based Hudong Shipyard (now Hudong-Zhonghua Shipyard), and the ship was delivered in December 1978. The ship was seriously damaged by a fire accident in December 1981, and was refurbished in 1982. Operated by the North Sea Branch of the National Oceanographic Bureau, Xiangyanghong 09 has taken part in a number of important scientific research projects.

向阳红 9号

该级第一艘向阳红 9号的建造在上海在1977年10月开始-建立 沪东造船厂（现在沪东-中华造船厂），而且船在1978年12月交付。船严重地在1981年12月被意外火灾损害了，和是在1982年整修。 被国家海洋局北海分局操作，向阳红 09号已经参加一些重要的科学研究计划。

Xiangyanghong 14

The second hull of the Type 645, Xiangyanghong 14, was built in 1981. The ship has been operated by the South Sea Branch of the National Oceanographic Bureau for scientific research purpose.

向阳红 14号

645型的第二艘，向阳红 14号，在1981年建造。船已经被国民海洋局南海分局操作为科学研究目的。

Xiangyanghong 16

The third hull Xiangyanghong 16 was also built in 1981. On 2 May 1993, the ship collided with a Cyprus-registered 38,000t cargo ship Silver Horn at N 29°12′ E 124°28 near Chinese coast. Xiangyanghong 16 suffered from serious damage caused by the collision, and sank in the East China Sea at 05:37 AM local time, killing three crew members onboard.

向阳红 16号

第三艘向阳红 16号也在1981年建造。1993年5月2日，在靠近中国海岸附近N 29°12′E 124°28′同一艘赛普勒斯-注册的38,000吨货船银角（Silver Horn）号碰撞。向阳红 16号承受由撞击所引起的严重损害，在当地时间早上05:37沉没在中国东海，船上三名乘员死亡。

Description: Xiangyanghong 21 is the ocean electronic surveillance ship based on the Type 645 (Source: Chinese Internet).描述：“向阳红”（Xiangyanghong）21（V350，“南调”（Nandiao）350）海上电子监视船

Xiangyanghong 21 (V350, NANDIAO 350)

In 1976, the Central Military Commission (CMC) and the State Council approved the building of Type 813 ocean electronic surveillance ship based on the Type 645 oceanographic survey ship design. No.708 Institute carried out the design work between 1977 and 1980, and Hudong Shipyard completed the construction of the ship in September 1980. Officially named Xiangyanghong 21, the ship was delivered to the PLA Navy in November 1982. The tests of the onboard electronic systems were carried out in March~April 1983.

向阳红 21号（V350，南调 350）

在1976年，中央军事委员会（CMC）和国务院批准了813型海洋监视船的建造，基于645型海洋调查船设计。708研究所在1977年至1980年承担设计工作，沪东造船厂在1980年9月完成了船的建造。并且正式地命名为向阳红 21号，该船在1982年11月被交付给 PLA海军。舰载电子系统测试1983年三月~四月实施。

Although the ship received the name of Xiangyanghong like other oceanographic survey ships of the same class, it was known as V350 or NANDIAO 350 in the PLA Navy. Operated by the PLA South Sea Fleet based at Zhanjiang, Xiangyanghong 21 was the PLA Navy’s first electronic surveillance ship with ocean operation capability.

虽然接受像同级其它的海洋调查船向阳红的命名，但是它即是V350或PLA海军南调 350号。被PLA南海舰队在湛江基地操作，向阳红 21号是PLA海军第一艘具有海洋操作能力的电子监视船。

Specifications

Crew: 150
Length: 112.05m
Beam: 15.20m
Draft: 5.50m
Full displacement: 4,435 tonnes
Propulsions: 2 X 9ESDZ43/82B diesel, at 4,500hp (3,308kW); 4 X diesel, at 640hp (470kW)
Speed: 18.2 knots
Range: 10,000nm @ 14 knots
Endurance: 60 days

规格

组员： 150 名
长度： 112.05 米
宽度： 15.20 米
吃水线： 5.50 米
排水量： 4,435 吨
推进： 2 X 国产9ESDZ43/82B 柴油机，额定4,500 马力（3,308 千瓦）；4 X 柴油机，额定640 马力（470 千瓦）
速度： 18.2 节
航程： 10,000 海里/14 节
续航力： 60 天

Last update: 5 October 2008
最后更新： 2008年10月5日