Ukraine’s rapid deployment of deep-strike drones against Russian positions is facing a potential bottleneck due to a shortage of specialist mini turbojet engines, raising concerns over production capacity during a critical stage of the war.
Mini turbojet drones, which are faster and cheaper than cruise missiles, allow Kyiv to strike deep into Russian-held territory while competing with Russian jet-powered systems such as the Geran-5. However, more than a dozen defence experts and officials have highlighted that Europe currently struggles to supply enough engines to meet soaring Ukrainian demand.
“Europe has a massive bottleneck in mini-jet engine production,” said Fabian Hoffmann, senior research fellow at the Norwegian Defence University College. Ukrainian sources describe the shortage as “probably the main factor limiting the number of missile drones produced.”
Ramping Up Production
Czech manufacturer PBS Group, one of the few producers at the start of the war, has increased output five-fold since 2023 and plans to reach eight-fold by year-end. PBS engines power drones like the Palianytsia, capable of speeds up to 900 km/h (559 mph), compared with slower propeller-driven Shahed drones used by Russia.
Other European companies, including Germany’s JetCat and the Netherlands-based Destinus, are also scaling production, while new players such as German drone maker Quantum Systems and Czech group CSG are entering the market. However, large aerospace companies like GE and Rolls-Royce remain largely absent, focusing on fighter-jet engines.
Mini turbojet engines, often under 30 cm in diameter and built with lightweight materials such as titanium alloys or 3D-printed components, power a range of drone systems, including loitering munitions and missile interceptors.
Challenges Ahead
Despite ramped-up production, supply remains constrained. Some Ukrainian drone makers are exploring in-house engine development and low-cost pulsejet engines, but these solutions currently fall short of demand.
“The market is very fast and very hectic,” said Pavel Cechal, head of CSG’s jet-engine division. “All defence companies see huge potential in this segment, and competition is intensifying.”
With European suppliers stretched to capacity, Ukraine’s drone program faces a critical test in sustaining its deep-strike operations against Russia while keeping pace with high operational demand.
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