China first received a single unit of Soviet in January 1965, and four more in 1966 through 1967 and the last two in 1968. The Hudong Shipyard built the Chinese version as Type 021-class missile boat at a rate of ten boats per year with several different versions. The majority of this class is being transferred to reserve status. Several dozen remain active and these active units are being rearmed with

C-101 The C-101 is a Chinese supersonic anti-ship cruise missile. It is manufactured by the China Aerospace Science and Industry Corporation The China Aerospace Science & Industry Corporation Limited (CASIC) is a Chinese state-owned enterprise ...

supersonic

anti-ship missile An anti-ship missile (AShM) is a guided missile that is designed for use against ships and large boats. Most anti-ship missiles are of the sea skimming variety, and many use a combination of inertial guidance and active radar homing. A good ...

Bangladesh Navy The Bangladesh Navy ( bn, বাংলাদেশ নৌবাহিনী, Bangladesh Nou Bahini) is the naval warfare branch of the Bangladesh Armed Forces, responsible for Bangladesh's of maritime territorial area, and the defence of imp ...

Type 021 missile boats rearmed with

C-704 The C-704 is a Chinese anti-ship missile. The missile was developed by the third research institute of the Chinese Aerospace Group, also the manufacturer of the C-701. Design This anti-ship missile is designed specifically for targets with displa ...

high subsonic

s. These boats are effectively used in swarm missile attacks.

''Huangfeng'' class

The ''Huangfeng''-class missile boat is the direct Chinese copy of Soviet Osa-class missile boat. Around 130 were built, including exported units. This class consists of several versions with different armament. Most are armed with twin 25mm guns, while some are armed with a single

AK-230 The AK-230 is a Soviet fully automatic naval twin 30 mm gun. Its primary function is anti-aircraft. It is mounted in an enclosed automatic turret and directed by radar. AK-230 is widely used, mounted on big warships as well as small craft. ...

gun mount. The majority lack the fire control radars but some do have a radar radome aft (between the two missile launchers). The Chinese engine is an improvement of the ''Huangfeng'' class over the original Soviet M503A diesel engine. The range of the boat is more than doubled without significant proportional increase of fuel consumption. However, due to the limited size of the boat, the actual endurance is not drastically increased because there is not enough extra space to store additional provisions needed for the longer endurance. Other improvements over the original Soviet ''Osa-I'' class included a much improved fire extinguishing system and life support system.

Hola class

A single unit of Type 021 without the gun is called ''Hola''-class missile boat. The ''Hola''-class missile boat is slightly larger than the ''Huangfeng'' class, with the length increased to more than . The boat has an additional radar radome that is also onboard many ''Huangfeng'' class boats. There is an additional pair of missile launchers added, and this pair can be readily removed when needed. The mast is redesigned so that it can be folded down when entering the protective cave in the mountains. The design is more successful than the ''Homa'' class and despite its age, the ''Hola''-class boat remains in active service like a few of its ''Huangfeng'' class cousins. This class is also known as ''Hela'' class.

''Houdong'' class

The ''Houdong''-class missile boat is the newest upgrade of the Type 021-class missile boat. The new boat is modified to carry C-801/802/803 missiles. It retains the hull of the original Type 021. Although the design was successful, more capable missile boats such as the ''Houxing''-class missile boat were already becoming available, so the ''Houdong'' class was geared for export. Iran is the first customer and the one in Chinese inventory is used for training foreign crews, and as a demonstrator to other potential customers, as well as other test and trial purposes.

References

* {{DEFAULTSORT:Type 021 Class Missile Boat Missile boat classes Missile boats of the Soviet Union Missile boats of the People's Liberation Army Navy