Krona air defense missile system against UAVs

The Russian defense industry is developing several promising anti-aircraft systems of various classes. One of them, the Krona air defense missile system, has already reached the testing stage. In the coming months, the developer expects to complete the current work and launch production. The new system is intended to complement the existing Defense and expand its capabilities to combat air targets, primarily drones.
Progress and plans
The Krona is being developed by the Kalashnikov Concern. The company regularly reports on its progress and discloses its immediate plans. In October 2025, management announced that the product would be ready for serial production by the end of 2026.
In mid-April 2026, the start of field trials, conducted jointly with the customer, the Ministry of Defense, was announced. During this stage, Krona is expected to confirm the design characteristics and identify areas requiring refinement.
In May, the concern's CEO, Alan Lushnikov, told the press that the tests were proceeding according to plan: running, climate, and mechanical tests were being carried out, as well as launches. missilesThe concern is optimistic about the project's progress and expects testing to be completed soon. Serial production and delivery to the military will follow.
In mid-June, the "National Security. Belarus 2026" military-technical exhibition was held in Minsk, where the concern revealed new details. According to TASS, citing a representative of the organization, the system is being considered as part of a larger air defense modernization strategy.

The concern describes this strategy as follows: a layered defense is being built, capable of engaging various aerial targets, including UAVs of all classes. In this system, the Krona is designated as a means of detecting and engaging medium-class UAVs, capable of protecting important stationary facilities.
A company representative added that preparations for series production have already begun. He did not provide a specific timeframe, but judging by previous statements, assembly is expected to begin by the end of the year.
The complex and its missiles
The Krona is a short-range air defense missile system for territorial air defense. Its weapons are mounted on fixed bases or self-propelled platforms. In both cases, combat operations involve long-term deployment, data exchange, and missile launches.
The developer asserts that the main current challenge facing military air defense today is medium- and heavy-class attack UAVs, and he has placed particular emphasis on combating them.
The core of the system is a turret-shaped combat module housing electronic equipment and launchers. Additional equipment modules and an operator console are also added.
Kalashnikov demonstrated two self-propelled variants. One is built on the BTR-80 wheeled chassis, while the other is proposed to be built on the BMP-2 tracked platform. In both cases, the combat vehicle operates in conjunction with a command post based on a four-axle KamAZ truck. A stationary variant was also mentioned, but it has not yet been demonstrated.

The combat module carries two independent detection channels—radar and electro-optical stations. These are used by the air defense missile system to monitor the situation, detect targets, and launch missiles. The system can also operate using data from external radars.
The munitions loadout consists of two types of missiles. The 9M340 missiles, borrowed from the Sosna, are used against targets at ranges of up to 10 km and altitudes of up to 5 km; they feature laser-beam guidance and a standard optical-electronic system. The second type is the 9M333 SAM, inherited from the later Strel-10. It has a multispectral (three-channel) passive optical-infrared seeker operating on the "fire-and-forget" principle, and has a range of up to 5 km. There's a caveat regarding altitude: independent reference books list a ceiling of 3,5 km, while the Krona brochures list 5 km. This is likely a rounding error or a provision for future missile upgrades.
The ammunition complement can consist of one or two missile types; promotional materials show a 6×9M340 plus 4×9M333 variant. The bias in favor of the 9M340 is also explained by its dimensions: the containers for the heavier 9M333 are larger, and fewer of them fit on the rails.
Against drones
The Krona's primary target is unmanned aerial vehicles (UAVs), not cheap "consumables" like the Shahed, but more expensive medium- and heavy-class reconnaissance and strike aircraft. Part of the design, both technical and operational, is tailored to these.
Although the Krona operates from a fixed, prepared position, its self-propelled vehicles are capable of quickly changing locations. This allows the air defense system to be adjusted to the current situation and anticipated threats.
The choice of chassis is crucial. A SAM system based on the BTR-80 or BMP-2 will be relatively simple to manufacture and operate: the army won't have to master an unfamiliar platform with all the associated hassle.
The Krona carries both a radar and an electronic countermeasure system. Two independent channels increase the chances of detecting and tracking even complex targets, including medium and small UAVs. By using optical tracking, the vehicle does not emit any radiation, complicating enemy electronic reconnaissance. This comes at the cost of reduced detection range and reliance on visibility, as optical tracking is inferior to radar in terms of all-weather capability.
The logic is similar with the missiles: both types are off-the-shelf, eliminating the need to develop them from scratch and separately put them into production, which simplifies procurement. The combination of two SAMs provides two interception lines in the short-range zone. The 9M340 laser-guided missiles engage targets at ranges of up to 10 km, with the operator guiding the missile to impact. If a massive attack or stealthy UAVs penetrate, the autonomous 9M333 ("fire and forget") missiles take over at ranges of up to 5 km.
And this is where the main question about the concept arises. If we're talking about mass-produced, low-cost vehicles like the Shahed, then missile interdiction is frankly unprofitable: one SAM often costs more than the missile itself. drone, and when attacked by dozens, the Krona's ammunition supply of ten missiles is exhausted instantly. Therefore, the system is focused on a different class of targets. The system will be most effective not against swarms of cheap drones, but against the less numerous and more expensive reconnaissance and attack UAVs of the medium and heavy class, cruise missiles, and helicopters. It is in this niche that the Krona sits alongside the Pantsir, Tor, and Sosna, occupying the place of a close-in system for covering stationary targets.

Kalashnikov's main trump card is that the system is easy to make and operate. If so, production will proceed faster, meaning key installations can be protected more quickly. At least, that's what the developer believes.
In short, the Krona is intended to both increase the number of fire units in the air defense system and fill the gap in combating medium and heavy UAVs. In other words, it should integrate into the existing layered defense and assume responsibility for protecting populated areas, industrial facilities, and the positions of other anti-aircraft weapons.
The Krona's exact place in the overall system is clear. But when it will actually go into production is a big question. Assembly is promised to begin this year, and with testing nearing completion, the schedule looks realistic. However, for projects of this class, schedule shifts are common, so the announced dates should be taken with a grain of salt.
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