During the course of yesterday, the Joint Staff of Japan’s Ministry of Defense announced that the Self-Defense Forces intercepted the aircraft designated Y-9FQ, which currently constitutes China’s most modern anti-submarine warfare and maritime patrol aircraft. According to the official statement, the aircraft was flying over the East China Sea, marking the first time Japanese aircraft have intercepted it since its presentation at the 2025 Victory Day parade.
Quoting some excerpts from the statement in question: “On Saturday, March 28, fighter aircraft of the Southwestern Air Defense Force of the Japan Air Self-Defense Force conducted response operations against a Chinese military patrol aircraft (Y-9) that flew over the East China Sea. As for the Chinese military patrol aircraft (Y-9), flights have been confirmed in the airspace around the East China Sea and other areas in the past, but the aircraft confirmed on this occasion has a different nose shape compared to previous aircraft, and this is the first time that the Self-Defense Forces have confirmed and announced an aircraft of this type.”
Alongside this information, the Self-Defense Forces also included a clear photograph of the aircraft taken by Japanese fighter pilots at close range from one of its side aspects, from which the distinctive nose of the Y-9FQ referred to in the statement could be clearly seen. At the same time, an older Y-8 aircraft was also identified, which would likewise be used for anti-submarine warfare and maritime surveillance missions. In both cases, the presence of a long antenna on their respective rear sections can be noted, corresponding to a system used for the detection of magnetic anomalies, which makes it possible to search for submarines.
Briefly reviewing what is known so far about China’s new Y-9FQ aircraft, it is worth noting that analysts in the Asian giant had been speculating for some years about a new development carried out by Shaanxi Aircraft Corporation (SAC), aimed at obtaining a new-generation anti-submarine warfare aircraft. As one of the tools incorporated for that purpose, in addition to the aforementioned elongated antenna, the aircraft would feature a new AESA radar capable of detecting both ground and airborne targets, also complemented by a synthetic aperture radar. In addition, the design would reportedly include MAWS sensors both at the front and the tail, a SATCOM antenna on the upper section, and ESM antennas on the wings, among other elements.
On the other hand, and referring to the flight paths of the Chinese aircraft intercepted by Japan’s Self-Defense Forces, it can be mentioned that they approached the limit of the island nation’s so-called Exclusive Economic Zone while maintaining a sinuous trajectory. According to reports from specialized media outlets, this would indicate that they had approached the area in order to track a Japanese submarine navigating those waters, even knowing that they would be intercepted by Japanese aircraft. In this case, it is presumed that F-15J fighters were the ones tasked with keeping watch over the Y-9FQ, considering that they would be the ones based closest to the area, specifically at Nyutabaru Air Base.
Image credits: @jointstaffpa on X
You may also like: Japan has begun construction of the second of its new ASEV destroyers to equip the Maritime Self-Defense Force
