Available public images of China’s new 6th-generation carrier-launched stealthy Shenyang J-50 aircraft show a side view, a frontal view, its underside, and its rear exhaust.
The fuselage has some jagged angles, with rectangular inlets beneath the wings and angled exhaust structures at the rear, both of which may reduce stealth effectiveness. Yet the J-50 operates with a B-2-like “lambda wing” configuration, which research indicates combines leading- and trailing-edge sweep with forward- and backward-swept structures.
The J-50, also known as the Shenyang Aircraft Corporation’s (SAC) J-XDS, may be a 6th-gen breakthrough stealth fighter or a simple F-47 copycat effort or maybe even F/A-XX that falls short of U.S. 6th-gen capabilities.
Stealthy Lambda Wing for J-50
A working online definition describes the distinct lambda wing shape as a configuration that allows the inboard wing to taper heavily.
In contrast, the outboard section tapers slightly or not at all, creating advantages in aerodynamic efficiency, high-speed stability, and low radar cross-section for stealth.
A research essay from Science Direct in 2013 confirms or supports this definition, stating the “lambda-shaped wing has some advantages compared to the traditional trapezoidal delta wing.
J-50 Fighter. Image Credit: Creative Commons.
J-50 Fighter from the Road. Image Credit: Creative Commons/Screenshot.
J-50 Fighter. Image Credit: Creative Commons/Screenshot.
For instance, the aspect ratio of the lambda wing increases aerodynamic efficiency, which leads to higher cruise lift/drag ratios.”
J-50 and F-47 NGAD
An advanced lift-to-drag ratio would arguably position the Chinese aircraft to compete effectively for air dominance in an engagement, enabling greater air-combat agility. The J-50 looks very fast and may be an effort to match or outperform the U.S. F-22.
With a fully horizontal configuration and no protruding structures such as tails or fins typically thought of as necessary for combat agility and air-war vectoring, perhaps the J-50 is stealthier than an F-22?
Without protruding structures or externally angled surfaces, ground-based air-defense radar has little to no surfaces on which to bounce an electromagnetic “ping” sufficient to generate a return signal.
F-47 and F/A-XX Copycat?
Have technological advances in recent years enabled breakthroughs that allow air-dominance vectoring without any vertical structures?
The J-50 could potentially achieve unprecedented agility and maneuverability with a fully horizontal fuselage, devoid of vertical structures, fins, or tails.
This is certainly possible, yet it does not suggest the People’s Liberation Army Air Force (PLAAF) has made any advances beyond the F-47 or the emerging F/A-XX, given that renderings of both aircraft suggest they can operate effectively as maneuverable fighter jets without any vertical structures.
F/A-XX Boeing Image.
Could such a breakthrough merge the stealth effectiveness of a bomber with the speed and agility of a stealth fighter jet?
This is the case with the F-47 as well as the J-50, a possible indication that the PLAAF is simply seeking to mirror, copy, or replicate the U.S.’s NGAD configurations.
J-50 Radar?
Regardless of what can be ascertained from photographs of an aircraft’s external configuration, the real margin of difference for an aircraft such as this would likely depend on less visible variables.
For instance, radar image fidelity and range, targeting precision, sensing, computing, and avionics are areas of the J-50 that could be difficult to determine from a cursory look at the exterior.
Yet it is precisely these kinds of attributes that will likely be more determinant in terms of how or why one aircraft prevails.
Mission systems, fire control, weapons accuracy and range, sensing, and high-speed, AI-enabled targeting and sensor-to-shooter pairing will likely be the areas through which one stealthy horizontal stealth fighter jet might achieve superiority over another.
A smaller, narrower, or pointier “nose radome” may offer increased stealth.
Shown is a graphical artist rendering of the Next Generation Air Dominance (NGAD) Platform. The rendering highlights the Air Force’s sixth generation fighter, the F-47. The NGAD Platform will bring lethal, next-generation technologies to ensure air superiority for the Joint Force in any conflict. (U.S. Air Force graphic)
Yet it might not provide sufficient space to “package” the large, concentrated number of transmit/receive modules required to support a long-range radar.
This suggests the platform is intended for closer-in air-to-air engagements or missions requiring new levels of speed and agility, such as maneuvering into position to destroy enemy air defenses and ground targets with unprecedented speed.
These missions might not require a larger, long-range radar built into the nose radome.
The J-50 could also operate in an unmanned capacity, enabling it to achieve its operational aims without a larger, longer-range radar.
It may network with unmanned systems to test enemy air defenses, blanket areas with ISR, or launch attacks when directed by a human.
Long-range sensing and targeting have advanced to the point that dogfighting will become much less likely.
About the Author: Kris Osborn
Kris Osborn is the President of Warrior Maven – Center for Military Modernization. Osborn previously served at the Pentagon as a highly qualified expert in the Office of the Assistant Secretary of the Army—Acquisition, Logistics & Technology. Osborn has also worked as an anchor and on-air military specialist at national TV networks. He has appeared as a guest military expert on Fox News, MSNBC, The Military Channel, and The History Channel. He also has a Masters Degree in Comparative Literature from Columbia University.
