Will 40 type 056s sounds way too much?
Since we have 80 type 022s, And I'm just using an arbitrary half and half rule.
Maybe 20 type 054As?
And maybe at least 10 type 052Cs?
This patrol vessel will replace type 037 Hainan class ASW. This vessel started life as ASW but she become more of a multipurpose patrol ship latter on. They built 113 of them but some are exported to friendly country. There are approximately 80 left in service with PLAN Assuming 2 to 1 replacement due to better design. You are right on the target. I hope they will be equipped with Tow array sonar or Variable depth sonar
Type 037 (Hainan Class) Submarine Chaser
Type 037 (Hainan Class)
Type 037 (NATO reporting name: Hainan class) is the anti-submarine patrol craft (also known as submarine chaser or sub-hunter) introduced in the 1960s. Originally designed for the anti-submarine warfare (ASW) role, the versatile vessel has actually been used for a wide range of duties, including offshore patrol, escorting, surveillance, and mine laying. A total of over 126 examples were built between mid-1960s and mid-1980s, with 99 hulls commissioned by the PLA Navy. The vessel was also exported to Cambodia, Pakistan, Bangladesh, Egypt, Burma, and North Korea.
As the Type 6641 (Chinese copy of the Soviet Type 201 OS-1 class) patrol craft was incapable of supporting the PLA Navy’s ongoing conflicts with the Nationalist navy in the Taiwan Strait and South China Sea in the late 1950s, a larger patrol craft with increased speed, seaworthiness and firepower was desperately required. In 1959, the PLA Navy organised its effort to replace the Type 6641 with an indigenously developed patrol craft of same class. 701 Institute finished the development of the Type 037 patrol craft in 1961, and the construction began in August 1962.
The first hull (pennant number 278) was built by Dalian Shipyard using Soviet-supplied components. The hull was then transported to Guangzhou-based Huangpu Shipyard in southern China by railway for system installation. No.278 boat was launched on 17 December 1963 and later transferred to Yulin naval base in Hainan Island for operational trial. The boast was officially commissioned by the South Sea Fleet on 16 November 1964. The second hull No.279 also built by Dalian Shipyard using Chinese-built components and Soviet-made diesel engines was launched in July 1965. From the third hull the construction was carried out by the Guangzhou-based Huangpu Shipyard independently.
In late 1966, Shanghai-based Qiuxin Shipyard also began to build the Type 037 patrol craft for the North Sea Fleet and East Sea Fleet. In 1972, Qingdao Shipyard in northern China became the third shipyard involved in the Type 037 production. The vessel was certified for design finalisation in February 1975. In its peak time, the Type 037 production was carried out at four shipyards (Chongqing, Qingdao, Qiuxin, and Huangpu) simultaneously. A total of 126 hulls were built, including 121 examples in the basic patrol craft variant, 2 in the rescuing boat variant, and 3 in the hospital boat variant. A total of 10 boast were donated and 12 exported to foreign navies. 99 boasts were commissioned by all three fleets of the PLA Navy. Some of these may have been scrapped or converted into transport boats.
Specifications
Displacement: (standard load) 375t; (full load) 392t
Dimensions: Length 58.8 m; Beam 7.2m, Draft 2.2m
Propulsion: 4X Type 9-D-8 diesel, rated at 4,000hp sustained, four shafts
Speed: Maximum 30.5 knots; Economic: 15 knots
Range: 1,300nm @ 15 knots
Crew: 78
Radar: (Surface search) 'Top Plate', or 'Port Head', or 'Skin Head', E/F-band
IFF: 'High Pole'
Sonar: Tamir II, hull-mounted high-frequency (Indigenous SJD-3 on later units); Thomson Sintra SS 12 VDS (some units)
Guns: 2 X Type 66 dual-57mm/70-calibre AAA gun (one front, one rear); firing 6.31kg shells at 70 rounds/min; effective range 5km against airborne targets and 6km against surface targets; 2 X Type 61 dual-25mm/60-calibre AAA guns, firing shells at a rate of 800~900 rounds/min to a range of 2,700m
ASW Rocket: 2 X Type 65 (RBU-1200) 5-tube ASW rocket launcher, range 400~1,450m; warhead 32kg
Design
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