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US Army Flies 3D-Printed Kerosene Engine on VICTOR Drone

November 3, 2026

2 min read

Key Takeaways

US Army flew a 3D-printed heavy-fuel rotary engine on VICTOR drone.
The engine burns kerosene fuel, eliminating separate gasoline supply.
ARL developed the system with industry partners including Griffon Aerospace.

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Strategic Implications

This development may indicate a significant advancement in drone propulsion systems, potentially increasing endurance and payload capacity. The use of 3D printing and heavy fuel could suggest a shift towards more efficient and sustainable drone operations, which could benefit military and civilian applications alike.

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What Happened

Revolutionary Propulsion System Eliminates Gasoline Supply

The US Army has successfully flown a mid-sized drone powered by a 3D-printed heavy-fuel rotary engine, which burns kerosene fuel, eliminating the need for a separate gasoline supply. The engine was developed by the DEVCOM Army Research Laboratory with industry partners, including Griffon Aerospace. The VICTOR drone, a Group 3 aircraft, is part of a research effort aimed at giving drones longer endurance, heavier payloads, and operations in extreme environments. This development was first reported by various defense news outlets, including Army.mil and Defence Blog.

Source | Originally Published: November 2, 2026

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