On August 8, 2025, a video surfaced online showing a most unlikely sight in the skies over Ukraine: a humble agricultural crop-duster, the Zlin Z-137 Agro Turbo, swooping low over a field with a pair of deadly R-73 infrared-guided air-to-air missiles slung under its wings. This striking image, as reported by multiple outlets including The War Zone and Defense News, is the latest testament to Ukrainian ingenuity in the face of relentless Russian drone attacks.
The Zlin Z-137, a turboprop evolution of the older Z-37 Čmelák (which means "bumblebee" in Czech), was never meant for combat. First flown in 1963 and mass-produced through the 1980s, more than 700 of these aircraft were built, mostly for crop-dusting duties across the collective farms of the former Eastern bloc. The variant seen in the video sports a Walter M-601B turboprop engine, giving it a top speed of 180 miles per hour and a stall speed as low as 81 km/h (44 knots). Its rugged design, slow speed, and ability to fly low and steady made it ideal for agricultural work—but now, these same traits are being repurposed for a much more dangerous job: hunting drones.
According to reports from The War Zone, the Z-137 seen in Ukraine has been repainted in a military-style dull gray, with white identification stripes on the fuselage to reduce the risk of friendly fire. Under each wing, an R-73 missile—known to NATO as the AA-11 Archer—sits ready for launch. The R-73 is a Soviet-designed, short-range, heat-seeking missile introduced in 1984, boasting a maximum range of 18.6 miles against head-on targets and 8.7 miles tail-on. Its high off-boresight capability, usually aided by a pilot's helmet-mounted sight, allows it to engage targets at sharp angles—though it's unclear if the Z-137's pilot has such advanced aiming equipment. If not, the pilot would have to maneuver the entire aircraft so the missile's seeker could lock onto a target within its fixed field of view.
The agricultural plane's transformation into a missile platform is part of a wider Ukrainian effort to cobble together "extemporized" air defense solutions out of whatever is at hand. Since Russia began its full-scale invasion, Ukraine has had to improvise to keep up with the sheer number of drones—especially the Shahed series—launched by Russian forces. These drones, some of which are jet-propelled and can fly at twice the speed of the Z-137, pose a serious threat to Ukrainian cities and infrastructure. With Western-supplied advanced air defense systems in short supply and best reserved for higher-level threats, Ukraine has turned to a patchwork of countermeasures: everything from machine guns and searchlights to electronic warfare, surface-to-air missiles, and now, missile-armed crop-dusters.
This isn't the first time Ukraine has pressed non-combat aircraft into service against drones. In 2024, the Ukrainian military modified Yak-52 piston-prop training planes to shoot down Russian drones—albeit with a crew member wielding a rifle from the back seat, rather than mounted guns or missiles. The technical challenges of integrating heavier weapons onto light civilian airframes are considerable, but the desperate need for more drone-hunting platforms has driven innovation at a breakneck pace.
The Z-137's new role as a drone interceptor is intended to free up valuable Ukrainian fighter jets for other missions. According to Defense News, using such slow and low-flying aircraft to patrol for drones could act as a "picket," covering certain sectors of airspace where drones are most likely to appear. The approach isn't without precedent: the U.S. Air Force has recently fielded the OA-1K Skyraider II, a militarized version of the Air Tractor AT-802 crop-duster, for similar purposes—though questions remain about its long-term utility in high-threat environments.
Ukraine's use of the R-73 missile in various ad-hoc air defense roles has been one of the war's more remarkable stories. The missile, originally intended for use on MiG-29 and Su-27 fighters, has been adapted for launch from land vehicles, shipping containers, and even naval drones. The British- and Danish-developed Gravehawk surface-to-air missile system, for example, fits R-73s inside a modified ISO shipping container, complete with targeting sensors and generators. Modified Soviet-era 9K33 Osa vehicles have also been equipped to fire R-73s in place of their usual 9M33 missiles. In December 2024, a Russian Mi-8 helicopter was reportedly downed by a Ukrainian naval drone armed with repurposed R-73s.
Despite its versatility, the pairing of a half-million-dollar missile with a $22,000 crop-duster to shoot down a $50,000 drone does raise questions about cost-effectiveness. As Forbes noted, "It’s not clear a half-million-dollar R-73 is the right munition for destroying a Shahed that might cost $50,000 or less." Yet, with advanced air defense missiles in limited supply and the threat of drone attacks ever-present, Ukraine appears willing to accept this tradeoff for now.
There are still technical hurdles to overcome. The Z-137 in the video is equipped with two cylindrical stores inboard of the missiles—possibly external fuel tanks, gun pods, or simply remnants from its crop-dusting days. The aircraft lacks any obvious targeting system, such as a forward-looking infrared (FLIR) sensor, which would be vital for tracking and engaging fast-moving drones, especially at night. Ukrainian experience with integrating improvised targeting solutions suggests that upgrades could be on the way, potentially linking the Z-137 into Ukraine's broader drone detection network, which uses acoustic sensors, spotters, radar, and ground-control intercept via radio.
Should the Z-137 prove effective, it could be adapted to fire other Western-supplied missiles, such as the ASRAAM or AIM-9 Sidewinder variants, further enhancing its flexibility. For now, though, the missile-armed crop-duster stands as a vivid symbol of Ukraine's determination to defend its skies with whatever tools are available, no matter how unconventional.
As Russian drone activity continues to escalate, the sight of a gray-painted Z-137 bristling with missiles over the Ukrainian plains is a reminder of both the challenges and the resourcefulness that define this conflict. Whether or not this particular aircraft enters widespread operational service, it represents a creative response to an urgent need—and a message that, in Ukraine, nothing is off-limits when it comes to survival.