Balloons are back in the war, and Ukraine is using them to launch drones

Why the return of balloons to the battlefield could have a big impact on the range and lethality of drones.

KettleTech Labs balloon carrying Hornet drone

Ukraine is experimenting with using balloon drone carriers in an effort to extend range, while also using balloons as communication relays. Russia is developing its own analogues, including a replacement balloon-based system to replace Starlink.

Ukraine is using balloons to boost drone range

In July 2025, AGN reported that former Google CEO Eric Schmidt’s secretive drone manufacturing company, Swift Beat, was helping Ukraine develop advanced interceptor drones. This was early in Ukraine’s efforts to develop mass interceptor drones.

Little was (and still is) known about those drones. Meanwhile, KettleTech Labs has released footage showing it using a new balloon-launched system designed to deploy Swift Beat’s Hornet strike drones at altitude.

According to Defense Express, it is thought these drones have a range of around 150 km with a 4-5 kg warhead.

During the test, the balloon is reported to have carried the Hornet drone to an altitude of around 8,250 metres (close to the altitude of Mount Everest) before releasing the drone. The Hornet drone stabilised itself autonomously and then glided. It eventually landed around 42 kilometres from the launch point.

One of the greatest limiting factors for aircraft range is the energy required to push through thick air at low altitudes.

A-32 light aircraft modified as drone carrier
Photo: Ukraine goverment/Mykola Kalashnyk

Importantly, the UAV is reported to have had 95% of its battery charge when it landed. This has big implications for the potential range of drones. It could also have big implications for payload, as engineers have to grapple with a trade-off between range and payload.

By exploiting favourable winds, Ukraine may also be able to float the balloons over long distances before releasing the drones.

Louis Saillans, founder of Askalon Industries, posted a video of the balloon test and added that they are “probably invisible to radar too.”

Get the latest aerospace defence news here on AGN.

An important development for mid-range strikes

Since late 2025, Ukraine has focused on mid-range strikes. This is a distance beyond artillery range (around 40-50 km) and less than the range of long-range strike capabilities (usually 200-300 km).

This has been enabled by Ukraine’s masses of upgraded drones (e.g., FP-1/-2) that have destroyed large amounts of Russian air defence. At the same time, more drones are appearing to sever Russia’s “land route” to Crimea.

Ukrainian drones are also increasingly attacking targets in Crimea. It is unclear to what degree balloons are playing a role in these increasingly successful strikes.

Another area where balloons are being used is as a communications relay, as they can pair high-altitude balloons with Starlink satellite communications terminals.

Balloons reclaiming their original signal role

In early 2026, SpaceX cut Starlink access to Russian forces by blacklisting all the terminals that were not whitelisted with Ukrainian forces. This had an enormous impact.

Among other things (like developing its own satellite-based internet system), Russia has looked to the Barrage-1 system balloons equipped with 5G Non-Terrestrial Network (NTN) relays to provide high-speed data links for troops and drones. These are stratospheric balloons that rise to around 20-30 km.

Balloons/rigid airships have long been used for surveillance, extending the range of other aircraft, and communications. It seems they are reclaiming all these roles in the Ukraine war.

The first manned balloon flight occurred in 1783 in France, and by the Napoleonic Wars, there were fears that Napoleon would invade Britain with an army carried by balloons.

In the 1860s, the Union Army used them for observations during the American Civil War, and in the 1930s, the Navy built large Akron-class aircraft-carrying airships.

Akron-class of US Navy
Photo: US Navy archives

Notably, in WWII, the Japanese floated balloons up to the jet streams that carried them across to the Pacific Northwest, where they would fall and drop their bombs.

Featured Image: KettleTech Labs

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