Weapons Wide-Angle | Air-Launched Decoys: The "Penetration Stand-In" That Passes for the Real Thing
Air-Launched Decoys: The "Penetration Stand-In" That Passes for the Real Thing
■ Ma Jiong, Nie Long, Fan Xuelong
[Illustration: Conceptual rendering of air-launched decoy operations.]
This is a classic moment in the history of aerial warfare——
In the 1982 Battle of the Bekaa Valley, the Israeli Air Force, facing Syria's SA-6 surface-to-air missile system, launched "Samson" glide decoys to lure Syrian guidance radars into switching on. Their positions and operating parameters were immediately exposed to Israeli anti-radiation missiles waiting in the rear. Within a mere six minutes, 19 surface-to-air missile batteries were destroyed in their entirety, and Syria's air defense shield, built up over many years, collapsed in an instant.
That engagement introduced the world to the core value of air-launched decoys: no need to absorb firepower head-on — simply trick the radar into activating, and you create an opening for the follow-on strike. Nearly half a century later, as the U.S. military's latest MALD-X air-launched decoy completes swarm cooperative test flights under intense electromagnetic jamming, and as Russian air-launched long-range cruise missiles are comprehensively fitted with new built-in decoy modules, this airborne trickster that "passes the false off as the real" is reshaping the rules of aerial warfare in an ever more intelligent form.
Why do nations attach such importance to air-launched decoys? What distinctive characteristics mark their current development? In what direction will they evolve in depth going forward? Read on for this issue's analysis.
[Illustration: ADM-20 "Quail" air-launched decoy.]
The "Penetration Stand-In" Born from Electromagnetic Smoke and Fire
In a certain sense, the prototype of the air-launched decoy was born amid the electromagnetic smoke and fire of World War II, and "passing the false off as the real" (以假乱真) is the core trait it has carried from birth.
During World War II, radar technology began to be widely applied in air defense operations, and the difficulty of aircraft penetration increased sharply. To interfere with enemy radar detection, chaff jamming tactics emerged in response. During the 1943 Hamburg air raids, Allied aircraft dropped large quantities of aluminum chaff strips, generating dense false returns on German radar screens and causing a dramatic drop in the effectiveness of anti-aircraft artillery. This was the first large-scale practice of electromagnetic deception warfare in human history, and it planted the seeds for the birth of the air-launched decoy.
But chaff had inherent shortcomings: short suspension time, movement characteristics obviously different from those of real aircraft, and experienced radar operators could quickly identify and filter it out. As the Cold War curtain rose, air defense radar and surface-to-air missile technology iterated rapidly, and the limitations of traditional chaff jamming became increasingly pronounced. Accordingly, developing a dedicated decoy capable of realistically simulating the characteristics of combat aircraft became a practical requirement for air forces around the world.
In the mid-1950s, the U.S. Air Force launched the first dedicated air-launched decoy program, aimed at creating a "penetration stand-in" for the B-52 strategic bomber to disperse the firepower of the Soviet air defense system. In 1961, the 500-kilogram ADM-20 "Quail" emerged, becoming the world's first air-launched decoy to enter formal service. This "metallic ghost," approximately four meters in length, was fitted with a small turbojet engine, had a maximum speed of Mach 0.9, and a maximum range of over 700 kilometers. The airframe integrated corner reflectors and a simple signal retransmission device capable of replicating the radar return signature of the B-52 strategic bomber. Each B-52 could carry several ADM-20 "Quails" and release them simultaneously during penetration, forming a false formation with the carrier aircraft to disperse air defense firepower.
Constrained by the electronic technology of the era, however, the first-generation decoy's deception methods were simplistic, its flight path fixed, and it was incapable of simulating aircraft maneuvers. As radar technology advanced, experienced operators could quickly distinguish it. Compounded by its large size occupying bomb bay space, the "Quail" was quietly retired in 1978 after 17 years of service, and the first wave of air-launched decoy development temporarily receded.
Just as the U.S. military paused air-launched decoy development, combat experience from the Middle Eastern battlefield brought a turning point for the program. The results of the 1982 Battle of the Bekaa Valley drove air-launched decoys into a second period of development. The United States rapidly incorporated Israeli technology and developed the ADM-141 series Tactical Air-Launched Decoy (TALD), upgrading to an active radio frequency simulation system capable of precisely replicating the signal characteristics of multiple aircraft types. On the first day of the 1991 Gulf War air campaign, U.S. forces launched over a hundred of these decoys; as Iraqi air defense radars were left "attending to one thing and losing another" (顾此失彼) between real and false targets, the actual strike force had already quietly breached the defensive line.
[Illustration: ADM-160 series Miniature Air-Launched Decoy (MALD).]
A "New Battlefield Force" with Increasingly Diverse Capabilities
As a product jointly generated by battlefield requirements and technological progress, the evolution of air-launched decoys has never stopped. Entering the 21st century, breakthroughs in microelectronics and aerospace propulsion technology drove them into a new phase of comprehensive upgrading. The most representative example is the U.S. military's ADM-160 Miniature Air-Launched Decoy (MALD) series; its maturation marks the third generation of air-launched decoys elevating deception capability to an entirely new level.
In terms of size control and performance balance, the third generation demonstrates superior technical integration capability. Taking the ADM-160B as an example, its airframe length of 2.84 meters and launch weight of 115 kilograms allow it to be compatible with the external carriage systems of multiple conventional combat aircraft. This compact design does not sacrifice operational effectiveness — fitted with a small turbojet engine, this decoy can sustain a cruising speed of Mach 0.91, a maximum range exceeding 920 kilometers, and an endurance of nearly one hour, with flight attitude and speed profiles highly consistent with those of real combat aircraft. The onboard signal enhancement system further endows it with the ability to "transform seventy-two times" (72变): it can simulate the characteristics of more than ten types of airborne targets including fighters, bombers, and cruise missiles, and can dynamically adjust signal parameters for different radar frequency bands, making its deception fidelity incomparably superior to what it once was.
What truly drove its qualitative transformation is the implementation of the modular design concept. The standardized payload bay reserved in the airframe allows "role" switching according to mission requirements: fitted with a basic deception module, it serves as a dedicated radar decoy; with an active jamming module added, it can approach enemy radar and conduct close-range suppression, achieving the dual effect of "deception + jamming" (诱骗+干扰); equipped with electromagnetic reconnaissance sensors, it can penetrate high-threat areas to intercept enemy radar signal parameters; it can even be fitted with a small warhead, transforming into a light cruise missile to execute precision strike missions. The same airframe, different roles depending on the payload — this is precisely the ingenuity of the third-generation decoy.
Beyond the ADM-160, major military powers around the world are vigorously developing air-launched decoys and continuously advancing technological innovation along differentiated paths. Russia has equipped cruise missiles such as the Kh-101 and Kh-555 with built-in decoy modules that release chaff and active jamming devices during the terminal penetration phase; European new-generation air-launched decoys integrate both infrared and radio frequency simulation capabilities to address the challenge of multi-spectral detection systems; Israel focuses on lightweighting the decoy platform to enable mass deployment from reconnaissance-strike integrated unmanned aerial vehicles. The approaches differ in emphasis, but the direction is highly consistent — make decoys more convincing, more agile, and more effective.
At the same time, the compatible platforms for air-launched decoys continue to expand. They are no longer the "exclusive prop" of heavy bombers or fighter aircraft; large unmanned aerial vehicles and cruise missiles can integrate and carry them, ship-launched variants have been incorporated into maritime offensive and defensive systems, and land-based mobile platforms have begun undertaking forward deception missions. Deployment methods are increasingly flexible, and the capability to meet the operational needs of multiple services and arms continues to grow — from air to sea to land, air-launched decoys are moving from "airborne special force" to "cross-domain all-rounder."
[Illustration: B-52H aircraft carrying ADM-160 air-launched decoys. File photo.]
A "Master of Deception" That Knows How to Fight as a Pack
As the waves of informatization and intelligentization (智能化) surge forward, the air-launched decoy — that classic "airborne special force" — is continuously expanding its capability boundaries, empowered by new concepts, new materials, and new technologies.
In the past, air-launched decoys mostly relied on pre-mission-programmed routes and parameters: fixed routes, single signals, inevitably somewhat "rigid" in the face of a dynamic battlefield. The new generation of decoys is making itself more "intelligent" — equipped with smart signal processing systems, they sense enemy radar operating states in real time, dynamically adjust signal characteristics and flight trajectories, and achieve adaptive countermeasures (自适应对抗). Multi-source autonomous navigation technology will also support them in maintaining route accuracy in GPS-denied environments, calmly coping with high-intensity electromagnetic confrontation battlefields.
The U.S. military's "Golden Horde" project has already validated this direction — F-16 fighters dropped modified Small Diameter Bombs to test the feasibility of munitions making autonomous cooperative decisions in flight. The ADM-160 Miniature Air-Launched Decoy was likewise incorporated into that project as a member of the "autonomous cooperative attack munitions" family. Meanwhile, technical reserves in the global air-launched decoy swarm domain are accumulating rapidly: as of 2025, the cumulative number of patents related to air-launched decoy swarms in global public patent databases has reached over 2,000. Of these, patents newly filed in 2024–2025 account for more than 40 percent, concentrated in three major directions: distributed networked communications, machine learning target recognition, and miniature propulsion systems. This data clearly indicates: the intelligentization of air-launched decoys is not a distant prospect but a reality that is already unfolding.
More disruptive than a single decoy "becoming smarter" is the fact that swarm cooperative operations are reshaping the battlefield role of air-launched decoys. Through high-speed data link networking, a dozen or even dozens of decoys can operate in coordinated groups — some simulating assault formations, some simulating raid missiles, some serving as electromagnetic suppression nodes — each fulfilling its own function, collectively constructing a massive false assault posture that forces the enemy air defense system into a "saturation" predicament.
As the degree of systemic integration deepens, future air-launched decoys will no longer be isolated combat units but key nodes deeply embedded in the joint operations system (联合作战体系). By linking intelligence, command, and fire chains, decoys can dynamically adjust mission planning according to real-time situational awareness, forming close coordination with anti-radiation missiles, strike aircraft formations, and electronic warfare aircraft.
However, actual combat is the best "touchstone." Some military experts have pointed out that the actual effectiveness of air-launched decoys in complex electromagnetic environments still lacks systematic quantitative assessment data. As portable, low-cost radar warning devices become more widespread, some ground-based air defense units have already been able to identify decoys based on subtle signal differences, posing new challenges to the tactical effectiveness of decoys. In addition, although swarm networking has broad prospects, the data link stability and anti-jamming capability underlying it remain problems that no country has yet fully solved.
Looking across the evolutionary history of air-launched decoys — from chaff to large munitions, from miniaturization to modularization, and now accelerating toward intelligentization, swarming, and systemic integration (智能化、集群化、体系化) — every technological leap has been an answer to the same question: how to make the enemy believe a false target is real. And as air defense means continue to upgrade, the answer to that question is still being written.