Tàu ngầm của Tàu Cộng

 Để thị uy các nước láng giềng và dằn mặt Hải Quân Hoa Kỳ đang có mặt tại vùng biển Đông, Trung Cộng đã điều vài chiếc tàu ngầm nguyên tử tân tiến- phiên bản mới nhất của thế hệ tàu ngầm Type 091, được khoe là có khả năng tác chiến cao và tàng hình, chẳng dễ dàng gì mà phát hiện. Quả thật, đây là thế hệ tàu ngầm rất nguy hiểm của Trung Cộng vì có vận tốc nhanh hơn... tàu đánh cá và có khả năng bị... rò rỉ chất phóng xạ, làm ô nhiễm biển Đông. Nhưng điều các nước láng giềng than phiền nhiều nhất là việc Trung Cộng điều các tàu ngầm nguyên tử đến các vùng tranh chấp không chỉ gây ô nhiễm môi trường mà chúng còn nổ máy... quá lớn, quá ồn ào, làm người dân các nước trong vùng bị mất ngủ. Hải Quân Hoa Kỳ thì cho rằng cần phải thông cảm cho các thế hệ "tàu nguyên tử tàng hình" của Trung Cộng đã được chế tạo theo các kỹ thuật từ 50 năm trước, có lẽ chạy bằng nhiều động cơ... máy cày gắn lại nên hơi bị ồn. Dẫu có ồn ào tí chút nhưng đừng xem thường.

Type 091 submarine

The Type 091 (Chinese designation: 09-I; NATO reporting name: Han-class) was the first class of nuclear-powered submarines (SSN) deployed by the China's People's Liberation Army Navy Submarine Force and the first class of nuclear powered submarine built in Asia.

Background

The first chief designer of the submarine was an engineer and scientist of nuclear propulsion engineering, Peng Shilu (彭士禄), then in 1983 succeeded by Mr. Huang Xuhua (黄旭华). The first submarine in the class was commissioned in 1974^[ and the fifth and final boat of the class was commissioned in 1991.

The Han class have primarily operated in local waters. However since the 1990s, Hans have been used more aggressively. A Han shadowed a U.S. carrier battle group in the mid-1990s. In November 2004, a Han made an incursion into Japanese territorial waters and prompted Japan's maritime forces to go on alert for only the second time since the end of World War II. The incursion was through the Ishigaki, Okinawa island group, a lightly populated group of islands very near Taiwan. China later apologized for the incursion saying for "technical reasons", it ventured into Japanese waters.

The Han class have gone through major upgrades and numerous refits since their commissioning. The boats have six 533 mm torpedo tubes and carry 20 torpedoes. Alternatively, they can carry 36 mines in their tubes. The Han class is capable of firing sub-launched variants of the C-801 anti-ship missile as well as a range of indigenous and Russian torpedoes or mines. All remaining hulls have been refitted with new sonars, with Type H/SQ2-262B sonar manufactured by No. 613 Factory replacing the original Type 603 sonar on board. Anechoic tiles were added later to reduce noise levels.

Criticism

The Han-Class is well known for having a noisy reactor and poor radiation shielding, which causes health hazards for her crew as nuclear radiation levels are higher than they should be aboard the submarine. The submarine is also inhibited by an inability to launch missiles while submerged. This creates a tactical disadvantage against opponents that have well-developed anti-submarine warfare systems.

Their design and weapons appear to be inadequate for confronting modern warships. It is believed that long refits have often meant that these submarines have spent more time in port than out at sea, greatly affecting their operational capacity.

Boats of the class

Pennant Number	Launched	Completed	Status
401	1970	1974	Decommissioned 2000
402	1977	1980	Decommissioned 2004
403	1983	1984	Active
404	1987	1988	Active
405	1990	1991	Active

Boat 401 has had its nuclear reactor removed and disposed of. The submarine will be fitted out and serve as a museum exhibit.

^{(Source: https://en.wikipedia.org/wiki/Type_091_submarine)}