The U.S. Air Force (USAF) reportedly plans to acquire a new air-to-air missile with a maximum range of at least 1,000 nautical miles (nm). It also wants the weapon to be capable of engaging ground-based targets and has consequently dubbed it the Air Force Long Range Weapon (AFLRW).
India Already Has It!
Most of us would consider the AFLRW concept bold and technologically ambitious. In the following paragraphs, we will examine the technological challenges that must be overcome to develop such a weapon. Before doing so, however, let me offer an intriguing observation: India already appears to have the basis for an AFLRW-like weapon in its inventory, albeit with roughly half the range sought by the USAF. Yes, Brahmos Aerospace has been working on an air-to-air variant of the missile for over seven years now!
Current Air-to-Air Capability
Currently, the longest-range air-to-air missile in widespread USAF service is the AIM-120D-3 AMRAAM, which reportedly has a maximum range of 87 nm.
Lockheed Martin is developing the AIM-260 Joint Advanced Tactical Missile (JATM), a next-generation beyond-visual-range air-to-air missile (BVRAAM) for the U.S. Air Force and Navy.
The JATM reportedly offers a significantly greater range (more than 108 nb) and a higher speed (around Mach 5), giving it an advantage over China's PL-15.
The missile retains the same general dimensions and form factor as the AMRAAM, enabling seamless integration with existing rail launchers and the internal weapon bays of stealth fighters such as the F-22 and F-35.
Production of the missile commenced in 2024. The missile is still undergoing flight testing and is expected to enter service later this decade.
Also, the U.S. Navy has already begun fielding an air-launched version of the multi-role Standard Missile-6 (SM-6), designated the AIM-174B. The missile, intended to arm the F/A-18E/F Super Hornet, has a maximum range of 130 nm. It also retains secondary capabilities for anti-ship, land-attack, and counter-hypersonic roles.
Technological Challenges
Extremely long-range air-to-air missiles are primarily intended to neutralize high-value force multipliers such as aerial refuelling tankers and AWACS aircraft.
Developing such missiles presents four major technological challenges:
1. Weight and size
2. High-speed propulsion
3. Warhead effectiveness
4. Targeting and guidance
Weight and Size
Achieving a range of 1,000 nm would require a very large propellant load, increasing both the missile's weight and dimensions to the point where most fighter aircraft would be unable to carry it. The AFLRW, for example, is expected to be launched from a bomber such as the B-52.
High-Speed Requirement
Against a target 1,000 nm away, even a hypothetical high-supersonic missile would require approximately 13–26 minutes to reach its target, depending on its average speed and the target's speed and flight path.
By comparison, current BVR engagements at ranges of 100–200 km typically involve missile flight times of just 1–3 minutes.
A weapon capable of reaching 1,000 nm would therefore require revolutionary advances in propulsion—likely involving hypersonic ramjets, scramjets, multi-stage rockets, or boost-glide technology—effectively creating an entirely new class of stand-off weapon.
Reduced Accuracy and Larger Warhead
The missile's large size and sustained high cruise speed would inevitably reduce its manoeuvrability. Long flight time poses tracking and guidance challenges. Tracking and guidance inaccuracies and lower terminal agility, combined with the large size of its intended targets, would necessitate a heavier warhead to achieve a sufficiently large lethal radius. The heavier warhead would, in turn, further increase the missile's dimensions and weight.
Targeting and Guidance
The greatest challenge in developing an AFLRW lies in target detection, tracking, and mid-course guidance over a 1,000 nm engagement.
Unlike shorter-range missiles such as the AIM-260, whose launch aircraft can often provide continuous radar updates, an AFLRW would remain in flight for 15–25 minutes. During this period, the launch platform would be unable to maintain radar contact with distant or manoeuvring targets such as AWACS aircraft or tankers.
Instead, the missile would depend on a networked "kill web" of off-board sensors—including satellites, drones, other aircraft, and ground-based systems—for initial cueing and continuous mid-course updates via robust datalinks. These links would have to withstand jamming, latency, and line-of-sight limitations while providing highly accurate updates to compensate for inertial navigation drift over such vast distances.
Achieving reliable, real-time coordination across multiple platforms in a contested electromagnetic environment represents one of the programme's greatest technical challenges.
BrahMos Air-to-Air Variant
In March 2019, speaking to Financial Express Online, Dr Sudhir Mishra, then CEO and MD of BrahMos Aerospace, spoke of an air-to-air variant of the BrahMos-NG. He stated that the missile, when launched from the Tejas or Su-30MKI, would target the enemy's "radar in the air" capability by engaging AWACS, aerial refuelling, and transport aircraft.
The BrahMos-NG is a clean-sheet design rather than a derivative of the current BrahMos. It is being developed to enable carriage by medium-weight fighter aircraft.
Dr Mishra's remarks suggest that an air-to-air capability for the BrahMos-NG is a qualitative requirement projected by the IAF.
There is no obvious technological reason why an air-to-air version of the existing BrahMos-A, the air-launched version of the in-service BrahMos missile, could not also be developed.
Such a missile would already possess sustained high-supersonic speed, carry a large warhead, and could eventually achieve a range of around 800 km. And we have the best possible platform to launch such as missile - the Su-30MKI!
The shorter range of the Brahmos-A would significantly reduce the complexity of establishing the required kill web.
India could further bridge gaps in its space-based surveillance capability by accelerating the development of relatively affordable High-Altitude Pseudo-Satellite (HAPS) and Airship-based High-Altitude Pseudo-Satellite (AS-HAPS) systems.
HAPS is a solar-powered unmanned aircraft designed to remain airborne for more than 90 days while operating at an altitude of approximately 65,000 ft. It is being developed by NewSpace in collaboration with Hindustan Aeronautics Limited (HAL), which serves as the prototype development partner.
AS-HAPS is being developed for the Indian Air Force to provide persistent intelligence, surveillance, reconnaissance, electronic intelligence, telecommunications, and remote sensing.
As an airship platform, AS-HAPS could potentially accommodate a radar capable of providing all-weather surveillance and target tracking.
In addition to long-range target detection, AS-HAPS could also provide a low-latency communications relay for long-range missile engagements.
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