The AIM‑424 "Malice" Has a 463‑Kilometer Reach – and a Fatal Blind Spot

AIM‑424 "Malice": A 463‑km Missile That Outruns Its Own Guidance Chain

On August 22, 2026, at the Tailhook Association symposium in Reno, Nevada, the U.S. Navy released two photographs. One showed an F/A‑18E/F Super Hornet carrying four large missiles. The other showed the same missile inside an F‑35C internal weapons bay. The missile had a designation: AIM‑424. It had a nickname: "Malice."

The Navy did not brief reporters beforehand. It did not issue a press release with performance estimates. It simply published the images and let the defense community fill in the blanks.

The blanks are large. The missile has a published range of over 250 nautical miles, or 463 kilometers. That is farther than any air‑to‑air weapon the U.S. military has ever fielded, except for the AIM‑174B (derived from the Standard‑6) – and AIM‑424 is smaller, lighter, and specifically shaped to fit inside a stealth fighter's bay.

But 463 km is also farther than the F‑35C's own radar can see. The AN/APG‑81 has a detection range of about 200 km against large targets – less than half the missile's reach. This creates a simple problem. A missile that outruns its shooter's sensors is not a weapon. It is a delivery vehicle waiting for someone else to tell it where to go.

1. What the F‑35C bay demanded

The F‑35C internal bay measures 4.27 meters long and 0.64 meters wide. AIM‑424 was built to those exact limits. Its total length is 4.11 meters. Its body diameter is 340 millimeters. Its weight is 680 kilograms.

Compare that to the AIM‑120 AMRAAM, the current medium‑range standard. AIM‑120 weighs 161.5 kg and has a diameter of 178 mm. AIM‑424 is 4.2 times heavier and twice as wide. Compare it to the AIM‑174B, which is converted from the Standard‑6 naval surface‑to‑air missile. AIM‑174B is 4.7 meters long and weighs 860 kg – too large for any internal bay. AIM‑424 is 0.7 meters shorter and 180 kg lighter, yet its stated range (463 km) exceeds the AIM‑174B's 400‑km figure by about 16 percent.

The trade‑off is visible in the shape. AIM‑424 has a biconical warhead – a blunt forward cone that generates a larger Mach cone, reducing drag by hiding the body in its own shockwave. It also uses moving‑mass technology, shifting an internal weight to change the center of gravity and steer via pressure differentials. This is a ballistic‑missile technique, rarely applied to air‑to‑air munitions.

It solves the stowage problem. It creates a different problem. Estimated average flight speed is only about Mach 2.5. At 400 km, time of flight stretches to roughly eight minutes. Eight minutes is enough for a warned airborne early‑warning aircraft to complete three evasive turns. It is enough for a tanker to cut the fuel hose and start a diving breakaway. When the missile's own active radar switches on in the terminal phase, the search area covers about 46,000 square kilometers. A retired test pilot once described that scenario in plain terms: "In that much sky, finding a known incoming target is not about seeker performance. It is about luck."

2. The guidance chain is not ready

The F‑35C cannot see a target at 463 km. So AIM‑424 must be guided by something else.

The missile carries inertial navigation, GPS‑aided correction, and a two‑way datalink. That datalink allows external platforms to feed target updates during flight. Potential sources include the E‑2D Advanced Hawkeye, another forward‑deployed F‑35, a future collaborative combat aircraft (CCA), or even space‑based sensors. The terminal phase is handled by an active‑electronically‑scanned‑array seeker, likely using gallium‑nitride technology, possibly with an infrared‑imaging channel for stealth targets.

This is the theory. It depends on every node in that chain being operational, survivable, and connected.

None of them are fully ready.

The F‑35's Technology Refresh 3 (TR3) upgrade is nearly two years behind schedule. The APG‑85 radar has not been installed on production aircraft. The U.S. military has accepted F‑35s without radars – they are called "day fighters" in the industry. The E‑7A Wedgetail replacement for the aging E‑3 Sentry has a signed contract, but the planned purchase of seven aircraft is being reconsidered. The E‑3 airframes are older than many of the pilots who fly them. The first increment of the CCA program has selected contractors, but Increment 2 concept refinement continues into mid‑2027. The F/A‑XX next‑generation carrier fighter has not yet named a prime contractor.

Every link in the guidance chain is either in development, in debate, or delayed. Peter Layton, a former Royal Australian Air Force officer and visiting fellow at the Griffith Asia Institute, assessed the missile's role this way: "This weapon is aimed at countering Chinese bombers that launch long‑range anti‑ship cruise missiles. Its core mission is fleet air defence, not dogfighting."

That judgement rests on one precondition: the E‑2D must detect those bombers at 460 km. If it cannot, the range figure is irrelevant.

3. The other side of the race

China's PL‑17 is believed to have entered service in 2023. Estimated range is about 500 km. It has an active‑phased‑array radar and an infrared‑imaging dual‑mode seeker. Its total length is roughly 6 meters – too large for any fighter bay. It is carried externally by heavy fighters like the J‑16.

The two design philosophies are sharply different. PL‑17 uses brute force: a larger airframe, a bigger rocket motor, higher terminal speed, no shape compromises. AIM‑424 uses bay adaptation: maximum range within a constrained volume, accepting lower speed and reduced terminal energy.

The Pentagon has prioritized closing the gap in this category. Some officials have floated an even more ambitious target: a 1,000‑mile‑class missile. But AIM‑424 traces its lineage to the 2017 Long‑Range Engagement Weapon (LREW) concept – over a decade of development. In that same decade, PL‑17 moved from slides to live rounds under J‑16 wings. AIM‑424 is still in captive‑carriage testing. No public live‑fire record exists.

4. Target set and operational logic

The Navy's official statement says AIM‑424 is meant to "strengthen fleet air defence and maintain decisive air superiority against advanced threats."

Translated into operational terms, the missile's primary targets are not enemy fighters. They are airborne early‑warning aircraft, tankers, and electronic‑warfare platforms. These have poor maneuverability, large radar signatures, and high value. One hit can sever a node that an entire strike package depends on.

In the Pacific theater, the most dangerous threat to a U.S. carrier strike group is Chinese bombers, escorted by shore‑based fighters, launching long‑range anti‑ship cruise missiles. AIM‑424's theoretical answer is: an F‑35C, using its stealth, pushes forward to the edge of the enemy air‑defence zone. Under E‑2D targeting, it launches at 400 km and kills the enemy command‑and‑control aircraft before the bomber wave can release.

On paper, this works.

In practice, every variable is contested. How far forward can the F‑35C go? What is the radius of the enemy air‑defence bubble? At what range can the E‑2D lock onto a target that is deliberately reducing its radar cross‑section? If the target jams hard, can the datalink maintain coherence? None of these questions have public answers.

The missile also fits into a crowded U.S. inventory. AIM‑120 covers 100 km. AIM‑260 covers 200 km, with dimensions similar to AIM‑120 and fits in F‑35 and F‑22 bays. AIM‑174B covers 400 km, but only from external Super Hornet pylons. AIM‑424 covers 460 km and is built exclusively for the F‑35C bay. Four missiles, four range bands. Their mission boundaries, coordination protocols, and logistics burden have not been explained.

5. What the photographs actually show

The Reno photographs show a clean, finished piece of hardware. Test markings are visible. There are no live‑round paint schemes or warhead stencils. Four AIM‑424s sit under a Super Hornet's wings, looking symmetrical and ready.

That is an engineering achievement. It proves that a 460‑km missile can be shaped to fit inside the F‑35C bay.

But fitting is not fighting. The missile's effectiveness depends on the F‑35 upgrade cycle, the E‑7A, the CCA, and the F/A‑XX. All of those programs are currently in development. AIM‑424 requires all of them to be fully fielded before it can perform its intended mission.

One analyst who tracks U.S. aviation programs wrote on social media: "This is not a new air‑combat pattern. This is a bullet built for a future pattern that does not exist yet. The gun is not built. The sight is not mounted. The shooter is still training."

The real test is not on the pylon or in the bay. It is on the early‑warning radar that must see the target. It is on the datalink that must hold through jamming. It is on the seeker that must find a moving target after eight minutes of flight. It is on the pilot who must wait for the hit confirmation.

A gap in any one of those links turns 463 km into a paper number.

The AIM‑424 "Malice" is a real missile. Its deterrent value, however, remains a future promise – not a present capability.