China’s Two Different UUV Motherships Under Construction and More on China’s Procurement Philosophy

Others have already written good technical analyses of the two vessels. My interest is less about the ships themselves and more about what they tell us about how the PLA approaches procurement and innovation.

Wait a minute, did I just say “innovation”? If some YouTubers are to be believed, China is incapable of innovation and does nothing but copy foreign designs. They have their arguments, of course. Anyway, moving on.

One thing I have written about before is that defense procurement is not just about building the best platform. It is usually a balance between three factors:

• Performance: Does it meet the requirement?
• Cost: What does it cost to buy and sustain?
• Scale: How many can be built, and how quickly?

Performance gets the headlines. Cost gets the finance department’s attention. Scale wins wars.

The UUV mothership program appears to fit neatly into this framework.

Some observers have argued that the PLAN often builds one or two “working prototypes” before committing to large-scale production. The Type 054 frigate program is a good example. Only two original Type 054s were built before the far more numerous Type 054A entered service.

The Type 052C program followed a similar path. The lead pair, 170 Lanzhou and 171 Haikou, were commissioned in 2004 and 2005. After several years of operational experience and refinement, additional ships followed before the PLAN transitioned to the Type 052D, a class that has since grown into a fleet of more than 35 hulls with more still under construction.

The recently observed specialized landing barges believed to support cross-strait operations appear to follow the same logic. Prototype, test, refine,  then scale if the concept works.

Seen through that lens, the appearance of two different UUV mothership designs may not be particularly surprising.

In fact, it resembles a pattern seen elsewhere in Chinese procurement.

Earlier this month, StarAir’s SA218 conducted its maiden flight and emerged as one of several contenders for the PLA’s future basic trainer requirement, intended to replace the aging CJ-6. Alongside competitors such as the TA-20, the program illustrates how China is often willing to let multiple organizations pursue parallel solutions to a common requirement.

At first glance, this resembles the old Soviet design bureau system, where organizations such as MiG and Sukhoi competed for military contracts. The comparison works only up to a point. Modern Chinese firms such as Chengdu, Shenyang, and other AVIC subsidiaries are not merely design bureaus. Many are vertically integrated organizations capable of handling design, testing, development, and manufacturing under the same corporate structure.

The result is competition, but competition within a highly coordinated industrial system.

That distinction matters.

If China’s EV industry, drone industry, and shipbuilding sector have demonstrated anything over the past decade, it is that once a design is considered mature, Chinese industry can often scale production very rapidly. In that environment, running multiple prototypes in parallel may not be viewed as wasteful. It may simply be viewed as a faster way to identify the best solution.

This is where I think some outside observers miss part of the picture.

A common criticism is that building two different UUV motherships simultaneously wastes resources. That’s a fair argument. If shipbuilding capacity is constrained, parallel development can certainly appear inefficient.

However, if you possess the world’s largest shipbuilding industry, massive civilian construction capacity, and extensive supplier networks, the calculations change. The cost of building two prototypes may be relatively small compared to the value of accelerating the learning process.

The same thinking can be seen in other sectors. China’s civilian automotive industry supports military vehicle programs such as the Mengshi family. Its commercial drone ecosystem provides technologies and expertise useful for military UAV development. Its commercial shipyards contribute directly to naval construction. The broader concept is often described as Military-Civil Fusion, where civilian and military industries share parts of the same industrial ecosystem.

Whether every aspect of that strategy succeeds is open to debate. China has had its share of procurement problems, cost overruns, and corruption cases. No defense acquisition system is immune from bureaucracy.

Still, the appearance of two different UUV motherships under construction serves as another reminder that China’s procurement process is often about more than just building a single platform. It is about finding the balance between performance, cost, and scale.

The Shanghai and Guangzhou UUV motherships may ultimately prove to be competing concepts, complementary concepts, or simply steps on the road to a future production design. Regardless of the outcome, they fit a pattern that has become increasingly familiar: let multiple ideas compete, iterate quickly, and once a winner emerges, leverage China’s industrial base to produce it at scale.

As the old saying goes, quantity has a quality all its own. Performance, cost, and scale are not competing ideas. They are simply three parts of the same equation.