China Defense Blog: From "Sea Eagles" to Flying Sharks? The Curious Case of the PLAN's 4th Naval Aviation Division

In a recent PLAN publicity photo showing a group wedding ceremony (yes, group weddings are a fairly common military and state-enterprise tradition in China), one detail caught the attention of a number of Chinese military watchers (see below)

Behind the newlyweds sat two factory-fresh J-15T carrier fighters and that alone is interesting.

The lineage traces back to the former PLANAF 4th Aviation Division and the legendary "海空雄鹰团" unit, one of the PLA Navy's most prestigious fighter formations(link). Open-source reporting indicates the brigade received J-11BH fighters around 2020 (link), making the appearance of brand-new J-15Ts only a few years later particularly noteworthy.

The question being raised in Chinese military circles is fairly straightforward:

Why is a land-based Eastern Theater Command naval aviation unit receiving carrier fighters?

The J-15T is not simply another Flanker derivative. It was specifically developed for catapult carrier operations, featuring strengthened landing gear, structural reinforcement, carrier-compatible avionics, and other modifications designed to survive repeated arrested recoveries and catapult launches. In other words, this is not the aircraft one would normally choose if all you wanted was another shore-based air defense unit.

A High-Readiness Unit with an Unexpected New Aircraft:

The former PLANAF 4th Aviation Division has long been regarded as one of the PLA Navy's more operationally active formations. Historically associated with the East China Sea and Taiwan Strait directions, the unit has maintained a relatively high profile compared to many other naval aviation formations.

What makes this development intriguing is that the brigade remains a land-based unit. Unlike the established carrier aviation brigades already operating J-15 variants from Liaoning and Shandong, the "海空雄风" brigade does not currently belong to an embarked carrier air wing.

So why the J-15T? Nobody outside the PLAN knows. Naturally, that has not stopped the speculation.

Theory #1: Preparing for Carrier Number Four

One theory floating around Chinese milblog circles is that the brigade is being groomed as the nucleus of a future carrier air wing. China currently operates Liaoning and Shandong, while Fujian continues flight testing and operational workups. A fourth carrier is widely expected, although details remain unknown.

If that assumption is correct, converting an experienced fighter brigade years ahead of commissioning a future carrier would make sense. Carrier aviation is fundamentally a people business. Aircraft can be delivered relatively quickly; experienced aviators, maintainers, LSOs, and deck crews cannot.

From that perspective, early conversion could simply be a long-term investment.

Theory #2: Why Not Just Give Them the J-35?

The obvious counterargument is equally valid. If the ultimate goal is building a future carrier air wing, why not skip directly to the J-35? After all, most observers expect the J-35 to become the PLAN's long-term carrier fighter.

This is where another theory emerges. It may simply be too early.

Even under optimistic assumptions, it will likely take years before enough carrier-configured J-35s exist to equip multiple carrier air wings. In the meantime, the PLAN may need a larger pool of pilots already familiar with carrier aviation fundamentals.

A pilot who has spent years flying the J-15T, practicing carrier procedures, and potentially accumulating carrier experience is much easier to convert to the J-35 than a pilot coming straight from a land-based fighter community. Under this scenario, existing carrier aviators would likely receive priority for J-35 conversions first, while their J-15Ts trickle down to follow-on units. The newly converted "海空雄风" brigade would then serve as a convenient reservoir of partially prepared carrier aviators.

At least, that's how the theory goes.

The Training Pipeline Matters More Than the Airframe:

This is where comparisons with the U.S. Navy become useful. For the U.S. Navy, a pilot typically requires roughly 18 to 24 months from the beginning of flight training before becoming carrier qualified, although timelines vary depending on training availability and aircraft pipelines. After that, a pilot still requires additional fleet training and operational experience before reaching the status of a fully combat-ready carrier aviator.

In practice, it can take several more years before a junior pilot evolves into an experienced fleet operator capable of contributing to high-end carrier combat operations.

The key takeaway is that producing carrier aviators takes far longer than producing carrier aircraft.

The United States has spent decades building an institutional pipeline containing flight instructors, replacement squadrons, carrier qualification programs, and operational fleet units. Every new naval aviator enters a system that has been continuously refining itself since the Second World War.

China's carrier aviation community does not have that luxury of generations of accumulated experience. As a result, Beijing appears to be expanding its naval aviator pipeline aggressively. In recent years, the PLAN has broadened recruitment sources for carrier pilot candidates, drawing from naval aviation schools, universities, military academies, and other pathways while continuing to develop training programs through the Naval Aviation University.

Viewed through that lens, assigning J-15Ts to a prominent land-based brigade becomes easier to understand. Even if those aircraft never see a carrier in the near term, every additional pilot learning carrier-compatible procedures potentially expands the PLAN's future carrier aviation talent pool.

In other words, the aircraft themselves may be less important than the people sitting inside them.

Final Thoughts:

For now, there is no public evidence that the "海空雄风" brigade is becoming a carrier air wing tomorrow.

There is also no public evidence that it is not.

What we do know is that a brigade that was reportedly operating J-11BH fighters only a few years ago is now appearing publicly with brand-new J-15Ts. For a unit whose historical mission has been land-based naval aviation, that is enough to raise some eyebrows.

Whether this turns out to be preparation for Carrier No. 4, a stepping stone toward eventual J-35 operations, or simply a way to grow the PLAN's carrier-qualified pilot pool remains to be seen.

As always, this post reflects discussion and speculation commonly found within the Chinese military blogging community and should not be confused with a formal military assessment or professional analytical study. Sometimes a J-15T is just a J-15T. And sometimes a wedding photo tells a bigger story than intended.