PRAGUE, Czech Republic - Europe's mini jet engine makers are racing to expand production to meet surging Ukrainian demand for deep-strike drones, but a supply crunch is already threatening to constrain Kyiv's long-range strike capabilities at a pivotal moment in the war. A Ukrainian defense industry source told Reuters the engine shortage was "probably the main factor limiting the number of missile drones produced," while Maria Popova, COO of the Ukrainian Council of Defense Industry, confirmed that supply "remains constrained both globally and, more acutely, within Ukraine."
Mini turbojet engines, which are typically less than 12 inches in diameter and built from lightweight materials including titanium alloys and 3D-printed components, can power drones to speeds of up to 486 knots, far faster than propeller-driven models and far cheaper than cruise missiles. Ukraine relies on a small group of European suppliers, including Czech-based PBS Group, Germany's JetCat and Netherlands-based Destinus, while Russia sources some engines from China. Large manufacturers such as GE Aerospace and Rolls-Royce have largely stayed out of the segment, focusing on more profitable fighter-jet engines.
PBS Group, one of the few established producers at the start of the war, has increased production five-fold since 2023 and expects to reach eight-fold growth by year's end, with its chief global officer describing capacities as "stretched to the limits." ZofiTech produces roughly 200 engines a month, nearly all of which go to Ukraine, and expects demand "to reach thousands in the coming months." Czech defense group CSG, which acquired Serbian manufacturer Must Solutions in November, aims to produce about 1,000 turbojet engines in 2026, with roughly 35% destined for Ukraine.
Experts warn that structural barriers are slowing the ramp-up. Companies are reluctant to scale manufacturing without large government orders, which keeps the supply chain tight. Some Ukrainian drone makers are developing in-house engines to reduce supplier dependence, and engineers are testing a low-cost pulsejet engine known as the Hrim-17.