The 054B Class Frigate's Vertical Launch System Increased to 48 Cells: Satellite Images Reveal Iterations Before Mass Production of PLA's New Frigate

[Shanghai News] On August 13, the South China Morning Post reported, citing satellite images from the American intelligence company Vantor, a detail that is easy to overlook: images taken on June 28 at the Hudong-Zhonghua Shipyard show that the vertical launch system (VLS) arrangement at the bow of a 054B class frigate under outfitting is completely different from the first two vessels in service. The first two ships have 4 groups of 8-cell launchers, totaling 32 launch cells, while the new ship appears to have a structure of 6 groups of 8-cell launchers, which means 48 cells—a direct increase of 50% in missile capacity.

From 32 to 48: A Significant Change

The 054B is a new generation of stealth frigates for the PLA Navy, with the first ship, the Luhe (hull number 545), entering service on January 22, 2025, in Qingdao. The official announcement of its operational capability came in January 2026, taking about a year from commissioning to combat readiness, which is considered fast among PLA surface vessels. The second ship, the Qinzhou, was publicly revealed in May 2025 and is part of the South China Sea Fleet. CCTV reported that its AI-assisted air defense algorithm "almost eliminates air defense blind spots" and it also features an integrated mast and a flattened command structure.

The key to this change lies in the number of vertical launch cells. Military commentator Song Zhongping told the media that the original 32 cells "limited the types of missiles carried, which would affect actual combat effectiveness." Increasing to 48 cells can directly enhance the ability to withstand saturation attacks and regional air defense capabilities, "this upgrade is completely reasonable."

Why Increase Missile Capacity Now

The 054B is positioned as the "last line of defense" for carrier strike groups and amphibious task forces. A detail from a CCTV report in March noted that during an exercise, the Qinzhou identified a torpedo aimed at an amphibious assault ship, and the entire ship maneuvered at high speed to insert itself between the torpedo and the amphibious ship—crew members stated, "this likely means sacrificing oneself to protect the amphibious ship." The frigate's mission inherently creates a thirst for ammunition: in anti-saturation operations, the number of interceptors is crucial; 32 missiles would struggle to handle a decent saturation attack, while 48 missiles could withstand at least one more wave.

• 32 cells: 4 groups × 8-cell launchers, configuration of the first ship Luhe and the second ship Qinzhou
• 48 cells: 6 groups × 8-cell launchers, suspected configuration of the third ship (under construction at Hudong-Zhonghua)
• Missile capacity increased by approximately 50%, directly affecting the sustainability of saturation and regional air defense

Production Perspective: Changes to the Third Ship Indicate Design Is Not Yet Finalized

The author's focus is not on the number 48, but on the timing of the change. The PLA has a practice of small-batch construction, making modifications while using the ships, and then rolling out mass production after iterations mature. The 052D series was developed in this manner. While the first two 054B ships are still undergoing sea trials, the third ship has already modified its vertical launch layout, indicating that the design of this platform is far from finalized, and key iterations are taking place before ramping up mass production.

This assessment aligns with the views of PLA experts. Zhang Xuefeng previously told the media that the 054B strikes a balance between anti-submarine, anti-ship, and air defense capabilities, offering high cost-effectiveness, and "is suitable for large-scale production." More than 40 units of the 054A have already been built, and if the 054B enters the same production rhythm as its predecessor, the additional 16 cells will be replicated at the fleet scale—this is the truly strategically significant number.

Horizontal Comparison: The Neighboring Constellation Class Has Yet to Launch

Interestingly, while the PLA frigates are quietly increasing their missile capacity, the U.S. Navy's Constellation-class frigates are still mired in issues of overweight, delays, and cost overruns, with the first ship yet to enter service. The Chinese Navy has achieved combat readiness for the 054B in one year, while the U.S. has not delivered a single Constellation-class ship in four years. This is not merely a technical gap, but a disparity in shipbuilding industrial systems—while the U.S. can design more aesthetically pleasing ships, it cannot establish a stable production line. The White House's memo on August 13 considering the purchase of foreign warships effectively acknowledges this point.

Leaving a Question

Of course, there is uncertainty in inferring from satellite images. The 6 groups of 8-cell launchers are merely a reasonable guess based on pixels and could represent other layouts; cramming 16 additional cells into a 5000-ton hull comes with significant costs in weight, center of gravity, and magazine space. But a more pressing question is: what are the additional 16 cells intended to carry? If they are merely for 16 more air defense missiles, that would be a conventional iteration; if the vertical launch system of the 054B begins to accommodate hypersonic anti-ship missiles, paving the way for a "cheap platform + saturation firepower" approach, that would represent a qualitative change—after all, the 052D has already demonstrated the possibility of vertical launching the YJ-20. Until images of the third ship's sea trials are released, this question remains unanswered.