One in Three: The Economics of Shooting Drones With Drones

One in every three Russian aerial targets over Ukraine is now destroyed not by a missile or a gun, but by an interceptor drone that costs less than a used car. Ukraine's air force reported that figure in early 2026; over Kyiv specifically, the Commander-in-Chief credited drones with more than 70 percent of Shahed downings in February. A year earlier, the idea of routinely hunting a loitering munition with a $2,000 quadcopter was a novelty. It is now a structural layer of Ukrainian air defense — and the clearest example yet of a side winning a turn of the loop by changing the math instead of the missile.

The problem it solves is arithmetic, not aerodynamics. Russia launches Shaheds in waves of hundreds; each costs roughly $35,000–$50,000 to build, per CSIS and Ukrainian estimates. The missiles Ukraine had been spending to stop them cost orders of magnitude more — a Patriot interceptor runs over $3 million, a NASAMS round above $1 million. Shooting $50,000 drones with million-dollar missiles is a trade you lose even when you win. By mid-2025 the waves were arriving faster than allies could resupply the missiles.

The FPV interceptor inverts that. A Wild Hornets "Sting" costs between roughly $1,300 and $2,200; other units price the class anywhere from $1,000 to $5,000. Ukraine's National Security and Defense Council says one interception costs over 25 times less than a Western air-defense missile. Crucially, the interceptors don't replace the missiles — they absorb the volume, freeing scarce Patriots for the ballistic threats they were actually built to stop. That is the real strategic product: not a cheaper kill, but a preserved expensive one.

The limits are just as concrete. Success rates sit in the 60–80 percent band depending on who is counting and over what airspace — the NSDC reports above 60 percent, President Zelensky cited 68 percent, the Commander-in-Chief claimed over 70 percent over Kyiv. Ukraine rarely breaks out how many Shaheds fall to interceptors versus guns, EW, or missiles, so single headline percentages should be read as scope-dependent, not as one fixed number. And speed is a hard physical constraint: an interceptor has to catch a loitering munition, which is why one Sting test clocked roughly 315 km/h — fast for an FPV, and a sign of how much the airframe is being pushed to stay in the fight.

Read this as a cycle and the interceptor is not an endpoint — it is one move that has already provoked the next.

The threat scaled first. Russia localized Shahed production and shifted to saturation: overlapping flight paths, staggered launch waves, hundreds of drones in a night paired with ballistic missiles to split the defender's attention. The point was never any single drone getting through; it was exhausting the defense's expensive ammunition faster than it could be replaced.

The cheap counter answered the math. Ukraine adapted racing-drone technology — high-speed FPV airframes, autonomous targeting algorithms — into dedicated interceptors through 2024, then scaled hard. The NSDC reports 100,000 interceptors produced in 2025, with production capacity up eightfold and output reaching 1,500 FPV interceptors a day by early January 2026. More than twenty companies now build them. One class of interceptor alone is credited with downing on the order of 4,000 Shahed-type drones since its first kill about a year ago.

The threat is already adapting back. Russia has begun flying Shaheds higher and faster, partly to defeat the machine-gun teams that were a core pillar of cheap air defense — and, by extension, to complicate the interceptors that must climb and chase. The loop does not stop because one counter works. It swings the moment that counter works well, because the incentive to defeat it becomes total. The interceptor bought Ukraine a winter; it did not buy a permanent edge.

The cost-curve logic does not stay in Ukraine. The US Army bought roughly 13,000 Merops interceptors — Ukraine-proven — within about eight days to protect troops from Iranian Shaheds, at about $15,000 each with a stated path toward $3,000–$5,000 at volume; the Pentagon has separately eyed Ukrainian interceptors in the $1,000 range. Europe's "Drone Wall" discussions reflect the same shared vulnerability as Russian drones probe NATO airspace. This is the export story beneath the war story: Ukraine is no longer just consuming counter-drone capability, it is becoming the reference supplier for it.

The deeper lesson for any defense planner is the one Ukraine learned under fire — you cannot win a saturation war by out-spending the cheap side. You can only match cheap with cheap and preserve the expensive systems for the threats that justify them. Bending the cost curve beats trying to outrun it.