Ukraine's drone interceptors work until the weather turns. On 28 July, Presidential advisor Serhii "Flash" Beskrestnov wrote that fog and cloud in fall, winter, and spring can leave an interceptor pilot unable to see more than a dozen meters, and that success rates fall as soon as winter begins, a problem that is especially severe over the sea.

Cheap interceptor drones have become one of Ukraine's main answers to Shahed saturation. But nearly every system shares the flaw Beskrestnov names: it depends on a pilot or camera seeing the target. Ukrainian and foreign teams are all racing toward the same fix, an onboard seeker head.

The method started simple

The earliest approach was primitive but cheap and effective, Beskrestnov said. A pilot flies the interceptor to the right point using the radar network, then finds the target by eye, chases it, and attacks.

Russia answered not only with jet Shaheds but with onboard electronic warfare, evasion systems, in-flight maneuvers, and rear-facing cameras to watch the sky behind, he explained. Ukraine replied with machine-vision target capture and guidance.

Bad weather remains unsolved

None of that fixes visibility, Beskrestnov wrote, and the problem hits both ordinary and jet interceptors. The way out, he argued, is an autonomous seeker head, acoustic, thermal, or radar, mounted on the interceptor itself.

A radar seeker is the ideal, in his view, because it opens the door to a fully autonomous system with no human in the loop: the network sees the target, launches the nearest interceptor, guides it by tactical radar, and the seeker locks on for the kill.

A US firm has put a price on it

Building a radar small enough for an interceptor has proven hard, and teams in Ukraine and abroad are working on it, Beskrestnov said, adding that he would not discuss the Ukrainian efforts because the subject is sensitive.

He pointed to the American company Archimedes, which he said announced a radar days ago, operating at 24 gigahertz with a 25-by-14-degree field of view and a one-kilometer lock-on range, shown in a promotional video mounted on several Ukrainian interceptors, at about $4,000 per unit. Whether it works remains to be seen, he added, given how hard the problem is.

Serhii "Flash" Beskrestnov, advisor to the president on the development of defense technologies, has highly praised the recent personnel changes in the new Ukrainian commander-in-chief's staff. He says that Mykhailo Drapatyi is appointing the most competent people available to the Armed Forces' technical directions, adding that "after many years of war, he knows most of the army's technical specialists."

The endorsement comes from Beskrestnov, an adviser to former Ukrainian Defense Minister Mykhailo Fedorov, considered the most effective in Ukraine's history. After the dismissal, he became a non-staff adviser to President Volodymyr Zelenskyy.

The technology war moves weekly

Beskrestnov rates the new appointees on temperament as much as expertise.

"The main thing is that these new heads are energetic, modern, and good communicators," he wrote.

In a war of technologies, everything changes literally every week, and "we have to react to all the enemy's challenges just as fast. Analyze, forecast, respond, and act a step ahead of the enemy," he added.

Drapatyi arrived in the same reshuffle

Zelenskyy named Drapatyi commander-in-chief on 21 July, replacing Oleksandr Syrskyi, and said in the same address that he had offered Fedorov a leadership position bringing together Ukraine's technological capabilities.

Fedorov's removal drew street protests across Ukraine. Drapatyi commands the General Staff rather than the ministry, so the appointments Beskrestnov praises sit outside the structure he left behind.

Change will be slow, he expects

"I believe big positive changes are ahead of us, but this will not happen fast, because a great deal has to change," Beskrestnov said.

He did not name any of the new appointees or their posts.

Earlier, Beskrestnov disclosed Russia's new tactics in its drones. According to him, while Ukraine's cheap interceptor drones have been knocking Russia's nightly attackers out of the sky, Russia has now bolted a jammer onto some of its own drones to blind them.

Ukraine's cheap interceptor drones have been knocking Russia's nightly attackers out of the sky, so Russia has now bolted a jammer onto some of its own drones to blind them, according to Serhii "Flash" Beskrestnov, an adviser to Ukraine's President on defense technology. He examined the system, found in drone wreckage, and mapped how it strikes back at the interceptor sent to hunt it.

Russia batters Ukrainian cities with long-range drones most nights, and Ukraine has leaned on a cheap shield—drones costing a few thousand dollars—instead of burning through far pricier missiles. Anything that dulls that shield pushes the cost of defending the sky back up.

A jammer that waits for the interceptor

The unit rides on a Geran, Russia's version of the Iranian Shahed one-way drone. It listens for the video signal an approaching Ukrainian interceptor beams back to its pilot. Its receiver reads the interceptor's working frequency, then orders a transmitter to bury that same channel in noise, Beskrestnov found.

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By his first estimate, the jammer's signal runs about five times stronger than the interceptor's video link—enough to wipe the picture and any chance of steering the drone onto its target.

Seconds decide it

In Beskrestnov's account, the system detected a test transmitter and switched on jamming after about three seconds, and the feed cut out. The device stays nearly idle until a hunter comes close, then jumps to full power to smother the signal. It targets the ordinary analog video band around 5.8 gigahertz that many cheap interceptors still use.

Possible answers, include interceptors with terminal-guidance homing for the final stretch of flight, digital communication links, or transmitters set to non-standard frequencies.

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An old problem for Russia's drones

Russia has tried again and again to keep its one-way drones alive against Ukraine's defenses, including wiring jammers into some Shaheds earlier this year. Spending weight and power to protect a drone from a far cheaper interceptor shows how well those cheap drones work.

Russia is upgrading more of its drones to escape Ukraine's drone hunters. Russia has begun fitting jet engines to another attack drone model, the BM-35, presidential adviser Serhii "Flash" Beskrestnov reported.

The move is a direct answer to Ukraine's interceptors, and it is spreading across Russia's drone fleet. As Ukraine's interceptors have improved, the Russians are replacing their engines with jet engines not only on long-range Geran drones but also on budget mid-strike drones.

Each Ukrainian advance in shooting drones down pushes Russia to make them faster, Beskrestnov says.

The jet BM-35 is built to be harder to catch

Beskrestnov shared a Russian report showing the jet version of the BM-35 and its claimed characteristics. According to the Russian segment, the jet BM-35 can reach over 350 kilometers per hour, has a range of over 200 kilometers, and carries a 10-kilogram warhead.

The speed is the whole point. Russian fighters claim the increased speed is intended to make the drone harder for Ukrainian interceptors to catch, according to the Russian report. A faster drone gives Ukraine's interceptors less time to close and strike, which is exactly the problem the jet engine is designed to create.

The change is driven by Ukraine's own success

Ukraine has scaled up cheap interceptor drones that take down tens of thousands of Russian drones a month, and that success is what forces Russia to respond, swapping propeller engines for jets to fly above the speed interceptors can reliably catch.

The result is a cost-and-speed contest. Jet engines make each drone more expensive and complex than the cheap propeller models Russia has relied on for mass attacks. So by making its interceptors effective, Ukraine has pushed Russia toward pricier, faster drones, the same dynamic seen with the jet Gerans that now strike Ukrainian cities.

Russia's war is driving advances in weapons technology without limits. This means that soon Ukraine will have to find more ways to protect itself from new weapons, as well as its allies, who have also come under Russia's attacks, such as Poland, Romania, and the Baltic States.