Russia Is Racing to Make Geran-5 Too Fast for Ukraine’s Drone Interceptors—But There’s a Catch

Russia appears to be redesigning its Geran-5 jet-powered drone in an attempt to push it beyond 600–700 kilometers per hour and out of reach of Ukraine’s increasingly effective low-cost interceptors, according to Ukrainian aviation expert Anatolii Khrapchynskyi, cited by RBC-Ukraine on October 1.

Recent imagery of newer Geran-5 variants shows a major change: the small turbojet engine, previously mounted openly on a pylon above the fuselage, is being moved inside the rear of the aircraft.

It may look like a relatively simple redesign, but Khrapchynskyi argues the change reveals a much bigger objective: speed.

Earlier versions used a small Chinese Telefly turbojet mounted above the airframe. That configuration was workable at roughly 350–400 kilometers per hour, but trying to push significantly faster created serious aerodynamic penalties.

An exposed engine and pylon effectively become an aerodynamic brake as speed increases. The high-mounted engine also places the thrust line above the drone’s center of mass, continually pitching the nose downward and forcing the flight-control system to compensate.

That means the drone effectively creates additional drag just by keeping itself level.

Moving the engine into the fuselage addresses both problems. The thrust line can be brought closer to the aircraft’s centerline, the external pylon disappears, and the control surfaces no longer have to work as hard to maintain stable flight.

The payoff could be a significantly faster Geran-5. But speed comes at a cost.

An internal engine bay, air ducts and thermal protection all consume space that could otherwise hold fuel. For a thirsty turbojet, that means potentially sacrificing a substantial amount of range.

Heat creates another engineering problem. Exhaust temperatures can approach 700 degrees Celsius, requiring metal shielding, insulation and airflow systems to prevent the composite fuselage from being damaged.

All of that makes the aircraft heavier, more expensive and harder to manufacture. And Ukraine’s interceptors may be the reason Russia is accepting those compromises.

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Khrapchynskyi pointed to footage showing Ukrainian high-speed quadcopter interceptors from Wild Hornets pursuing jet-powered Russian drones from the rear.

Early combat results, he said, have demonstrated that targets traveling around 400–450 kilometers per hour can already be successfully hunted by this class of relatively inexpensive interceptor.

That threatens to undermine one of Russia’s key advantages with jet-powered drones.

Ukraine is not yet destroying them systematically at scale, and interceptor production is still expanding. But if inexpensive drones can reliably destroy Russian jet-powered targets traveling below 500 kilometers per hour, Moscow faces the prospect of losing costly weapons to a much cheaper defensive layer.

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War in Ukraine

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Sep 23, 2026 16:01

Khrapchynskyi believes Russia is therefore trying to push Geran-5 into the 700–800 km/h range before Ukrainian interceptors become widespread.

An interceptor attempting a pursuit could need speeds approaching or exceeding 900 kilometers per hour, requiring completely different aerodynamics, more powerful—and more expensive—jet engines, and extremely fast optical guidance capable of processing and reacting within milliseconds.

Earlier, reports emerged that Russian forces have reportedly begun using a new version of the Geran-5 attack drone equipped with an optical navigation system that allows it to navigate using reference images of terrain.

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