Russia's S-70 Okhotnik: Stealth-Drone Ambitions Undercut by a Friendly-Fire Loss

Russia's S-70 Okhotnik-B stealth combat drone is central to its manned-unmanned teaming ambitions — but a Russian fighter shot one down over Ukraine in October 2024, handing the wreckage to Kyiv and exposing the programme's immaturity.

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by Großwald
Sukhoi S-70 Okhotnik Prototype
Sukhoi S-70 Okhotnik Prototype, By Mil.ru, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=153566166

Updated 14 July 2026 — rewritten to correct the original article's omission of the S-70's October 2024 loss over Ukraine and its over-optimistic production timeline.

Russia's S-70 Okhotnik-B is the centrepiece of its push into stealthy, jet-powered combat drones — a flying-wing uncrewed aircraft meant to operate alongside the Su-57 fighter in what Russian planners call manned-unmanned teaming. The concept is real and consequential. The programme's maturity is another matter.

On 5 October 2024, a Russian Su-57 shot down its own S-70 over Ukrainian-held territory near Kostiantynivka after the drone reportedly lost control and drifted toward Ukrainian lines. The armed prototype's wreckage fell into Ukrainian hands — a rare intelligence windfall, handing Kyiv and its partners physical access to Russia's most secret uncrewed airframe.

The loss punctured the official narrative in two ways. It exposed the immaturity of the command-and-control link between the drone and its controllers — the single hardest problem in fielding a combat UAV, and the one Russian statements had glossed over. And it undercut the programme's timelines: forecasts of limited series production by 2024 and full operational capability by 2026 have not visibly materialised.

This is the recurring gap between what a system can do on a test range and what a force can actually operate. The Okhotnik shows that Russia can build a large stealth flying wing and pair it, in trials, with a fifth-generation fighter. It has not shown that it can control such an aircraft reliably in contested airspace, integrate it into strike packages, or produce it at scale — the things that separate a prototype from a capability.

The question for the late 2020s is whether Russia can close that gap under wartime industrial strain, and how much the captured airframe accelerates Western and Ukrainian understanding of its signature and systems. Reporting via The War Zone and The Aviationist.

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by Großwald

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