spotted

Critical F-22 upgrades

When it comes to the new underwing stores for the F-22, these are capabilities that have been in development for years now. However, the Air Force and prime contractor Lockheed Martin have only recently begun to talk about them openly. The tanks and pods are part of a larger upgrade plan for the Air Force’s F-22 fleet, which Lockheed is also now referring to as “Raptor 2.0.” The complete package also includes a new Infrared Defensive System (IRDS) integrated into the aircraft itself, as well as enhanced radar, electronic warfare, and other capabilities that you can read more about here.

The new external fuel tanks and infrared sensor pods are particularly important. As TWZ previously wrote, after a scale model of an F-22 in the Raptor 2.0 configuration was shown at the Air & Space Forces Association’s annual Warfare Symposium earlier this year:

Most obvious on the model are the new stealthy fuel tanks, a critical addition to ensure that the F-22 is able to better cover the vast distances that would be involved in a potential future conflict in the Indo-Pacific. In the past, the Raptor’s notoriously short range has been mitigated by using non-stealthy 600-gallon tanks, but these are not a realistic option when faced by more capable hostile air defenses. They are, however, a regular fit for the Raptors that sit alert in Alaska, which need the wing tanks for their intercept missions that can cover vast distances over long periods.

“So the way that I would describe it is, they are low-drag tanks. So the way you could interpret that is, they wouldn’t necessarily be required to punch [be jettisoned] to be in a combat scenario,” Katie Ciccarino, Vice President of the F-22 Program at Lockheed Martin, also told TWZ directly when asked about this specific detail in an interview on the sidelines of the 2026 Warfare Symposium. “They are [jettisonable] if you needed to be in a scenario where you had to, but the idea would be that you don’t have to, and you can perform any of the same maneuvers that you would on a clean wing with these tanks.”

Furthermore, as we also wrote previously:

While they are also stealthy, adding the IRST pods will nevertheless also have radar signature implications for the F-22. However, the tradeoff is considered acceptable, further evidence of just how critical this feature has become in air combat. In particular, an IRST sensor is useful for detecting stealthy targets, something that is also becoming increasingly relevant in the Pacific region. There is also the option of IRST-equipped Raptors sharing their sensor data with ‘clean’ F-22s, enhancing their situational awareness. You can read more about what the IRST brings to the F-22’s overall capabilities here. At this stage, we don’t know what specific sensor is used in the pods; Lockheed Martin refers to this store as the Advanced Sensor Pod.

As of 2024, the Air Force hoped to begin deliveries of the stealthy external fuel tanks to F-22 squadrons this month. However, in its annual budget request last year, the service said it was “closing out technical discrepancies under EMD [engineering and manufacturing development phase] contract to integrate [a] fix prior to RAA [required asset available] delivery,” but did not elaborate. At that time, the Air Force said it expected to begin operational testing of the tanks in the fourth quarter of Fiscal Year 2025, which ended on September 30 of last year.

The most recent Air Force budget documents also said that “qualification testing” of the infrared sensor pods was set to run through the third quarter of Fiscal Year 2026, which ends on June 30 of this year.

When either the external fuel tanks or the infrared sensor pods are currently set to enter operational service is unclear.

A new stand-off addition to America’s nuclear arsenal

Flight testing of the AGM-181A Long-Range Standoff (LRSO) cruise missile has also been going on for years, but only limited details about the design have emerged so far. The Air Force only released the first official rendering of the weapon, which is set to replace the existing AGM-86B Air Launched Cruise Missile (ALCM), last June. Four months later, a B-52 was spotted carrying two prototypes or test articles under its wing for the first time. One of them was painted a solid dark gray, while the other also had light gray, black, and orange markings painted on the side. The new pictures from Jarod Hamilton show the same mix of prototypes/test articles, but it is unclear if they are the exact same ones seen during the flight test last year.

As TWZ previously wrote after the rendering was released last year:

Most notably from this first unclassified render, the LRSO features an inverted tail very similar to the conventionally-armed AGM-158 JASSM stealthy air-launched cruise missile. The AGM-129 featured a similar arrangement, although with a differently shaped vertical tail. The missile looks like it has a trapezoidal fuselage cross-section design with a wedge-like nose. The wing design is also similar to JASSM. We see no air inlet in the concept rendering, which could be for security reasons, considering the inlet design is often a closely guarded feature on stealthy flying machines, or it could be located on the top of the missile. We also can’t say with any certainty how accurate this official rendering is of the actual design, but it is a given that some features will be omitted or even misleading for an initial public release.

The pictures we now have show that the rendering was relatively faithful to the real-world design. We also have a good look now at how the missile’s pop-out main wings look in their stowed configuration before release, as can be seen in the close-up below.

It is also known that the AGM-181 will carry a W80-4 thermonuclear warhead. These warheads are being created through what is described as a Life Extension Program (LEP) that involves the refurbishment and modernization of older W80-1s. Existing AGM-86Bs are armed with W80-1s, which are so-called dial-a-yield types that reportedly have two settings, either five kilotons or 150 kilotons.

Otherwise, “the W80-4 LEP will… enhance safety, security, and reliability,” the Department of Energy’s National Nuclear Security Administration (NNSA) said in a press release back in 2023. “Key design requirements of the W80-4 include use of the existing insensitive high explosive design, incorporation of modern components and safety features, extensive use of non-nuclear component technology developed for other LEPs, and parallel engineering with the USAF on the warhead-missile interface.”

The Air Force said previously that it hoped that the AGM-181 would reach initial operational capability in 2030. However, since 2024, the projected timeline for the missile entering service has been categorized as “controlled unclassified information” and withheld from public release. The service has also said that it is looking to start low-rate production of the missiles in Fiscal Year 2027, ahead of a full-rate production decision in Fiscal Year 2029. Currently, the planned launch platforms for the AGM-181 are the B-52H and B-21 Raider bombers.

As noted, the new F-22 and B-52 test flight pictures underscore a larger uptick in such activities as the Air Force moves ahead with several advanced aircraft and other capability development efforts. The service, as a whole, is expecting to receive a host of next-generation platforms and munitions, as well as other systems, in the next 15 to 20 years. This notably includes the B-21, the F-47 sixth-generation fighter, and multiple types of Collaborative Combat Aircraft (CCA) drones. The developments are also being accompanied by new tactics, techniques, and procedures.

We can expect to see more of the F-22 in its “Raptor 2.0” configuration and of the AGM-181, among other things, as flight testing of various new capabilities expands.

Special thanks to Jarod Hamilton for sharing these pictures with us.

Contact the author: joe@twz.com

Stockholm’s transfer of two Saab 340 AEW&C aircraft to Ukraine was announced in May 2024, as we reported at the time. The donation was part of the biggest Swedish military aid package for Ukraine up to that point, worth around $1.25 billion.

At the time, it was said that it would take around a year to train the aircrew and maintenance personnel, as well as prepare the ground facilities for the new aircraft.

The Saab 340 AEW&C aircraft is known in Swedish military service as the ASC 890 and alternatively as the S 100D Argus. The Swedish Air Force operated two of these aircraft, with both understood to have been provided to Kyiv. Another two ex-Swedish Saab 340 AEW&C aircraft are operated by Thailand, and another pair were sold to Poland, having previously been operated by the United Arab Emirates.

Royal Thai Air Force Gripen and Saab 340 Erieye AEW

For Ukraine, the significance of the Saab 340 AEW&C is hard to overstate.

It brings an entirely new capability for the Ukrainian Air Force, which has never operated any type of AEW&C platform.

The core of the aircraft is its Saab Erieye active electronically scanned array (AESA) radar. Carried atop the fuselage, this can detect air and sea targets at ranges of up to around 280 miles, with the aircraft typically operating at an altitude of 20,000 feet. Reportedly, the AESA system can track up to 1,000 airborne and 500 surface targets simultaneously.

Erieye explained

All this data is handled by three mission crew: a mission control officer, a combat control operator, and a surveillance operator. It can also be downlinked to ground stations and to other aircraft, at least in theory, of which more later.

Unlike a surface-based air defense radar, the Erieye provides a ‘lookdown’ capability. Without the line-of-sight limitations of terrain, the radar will be especially useful for detecting low-flying Russian drones and cruise missiles. These are otherwise notably tricky targets, due to the low altitudes at which they fly and their small radar signatures. With that in mind, the aircraft should provide Ukraine’s air defenses with a huge situational-awareness boost.

Within its layered air defense network, Ukraine relies heavily on crewed fighter jets (as well as other aircraft platforms) to intercept drones and cruise missiles. Adding the Saab 340 AEW&C to the equation, the radar plane should be able to work as a fighter controller, detecting targets, prioritizing them, and then assigning them to the fighters for interception. Equally, this data could be provided to other air defense assets.

Especially useful in this regard would be the NATO-standard Link 16 datalink communications system. This would, in theory, be compatible with Ukraine’s F-16 and Mirage 2000 fighters, as well as Western-supplied ground-based air defense systems.

Український пілот про ефективність Mirage2000/Ukrainian Pilot on the Effectiveness of the Mirage2000

However, in late 2024, it was reported that the F-16s donated to Ukraine have had Link 16 systems removed or disabled, due to U.S. worries that they could end up in Russian hands.

This would deprive those fighters of a real-time air defense ‘picture’ sourced from the Erieye radar, and, at this point, it’s unclear if the Link 16 connectivity is available to Ukraine.

As of March 2025, it was reported that the delivery of the radar planes was on track, and they would be able to operate effectively with Ukraine’s F-16s.

“The timing of ASC 890 deliveries is linked to when certain modifications to F-16 fighters will be ready. There is no delay in the transfer of airborne early warning aircraft to Ukraine,” the Lithuanian Delfi news agency reported. This sounds very much like a reference to enabling the Link 16 connectivity.

However, even without Link 16, the Saab 340 AEW&C is able to provide much-enhanced air and sea surveillance for Ukraine.

Later versions of the Erieye radar also have a synthetic aperture radar and ground moving target indication (SAR/GMTI) capability, although it’s not clear if Ukraine has received that either. While SAR provides detailed image-like mapping of the ground at standoff ranges, GMTI detects and tracks movements on the ground over time, which would allow monitoring of Russian troop movements.

Should Ukraine’s ambitious plans to buy Saab Gripen fighters in the future materialize, the combination of these jets and the Saab 340 AEW&C could make a tailor-made solution for air defense and other missions.

For all its capabilities, the Saab 340 AEW&C will also be a prime target for Russia.

Russia’s own A-50 Mainstay AEW&C aircraft have been repeatedly targeted by Ukraine, in recognition of their value as force multipliers.

Russia was estimated to have nine A-50s in active service at the start of the full-scale invasion. Since then, there have been two combat losses, and another of these aircraft was damaged in a drone attack while on the ground at a base in Belarus, and its current status is unknown. More recently, the General Staff of the Ukrainian Armed Forces claimed an A-50 had been hit in a strike on a maintenance facility in the Novgorod region of Russia.