GKN Aerospace Flies ITAR-Free UAV Powered by a 3D-Printed Engine

GKN Aerospace unveiled a UAV demonstrator at Sweden's Armed Forces Air Venture exhibition that most defense contractors would have a hard time replicating. The machine, called Project Otto, runs on a 3D-printed engine and contains no components subject to US International Traffic in Arms Regulations (ITAR).

The Swedish Defence Materiel Administration (FMV) contracted GKN in November 2025 for EUR 13.6 million (about $15.8 million) and set an 18-month schedule. The demonstrator is already ahead of that clock. The FMV's Director of Air and Space Systems confirmed the first flight will happen "no later than the beginning of 2027."

Why ITAR-Free Matters

ITAR controls how US defense technology moves across borders. For decades, that meant any product containing American-designed parts could not be manufactured or transferred without Washington's approval. GKN's approach with Project Otto was to design the propulsion system from scratch using its own metal additive manufacturing capabilities, deliberately leaving US-controlled parts off the bill of materials.

This is not a small technical detail. The US Big Five defense primes (Northrop Grumman, RTX, Lockheed Martin, Boeing, and General Dynamics) are among GKN's biggest customers. If those companies want products built on European soil without waiting for ITAR clearances, Project Otto shows it can be done with the right partner.

The Metal AM Foundation

GKN has been 3D printing metal propulsion components for years. The company supplied 3D-printed solid rocket motors to Northrop Grumman and helped advance additive manufacturing on the F135 engine with Pratt & Whitney. Along the way, GKN developed its own directed energy deposition (DED) printer. That in-house capability is what makes ITAR-free production realistic here, not just a regulatory workaround.

The first flight target is early 2027. If the demonstrator performs on schedule, it will land during a period of intense NATO debate over how to organize defense manufacturing across the alliance. Sweden joined NATO in 2024. Within weeks of Project Otto's public reveal, Sweden committed $28 million in fresh aid to Ukraine, with $14 million earmarked for American weapons systems. The economic and military ties are tightening fast.

What Comes Next

3D printing alone does not win contracts or bypass export rules. GKN's advantage is that it already delivers for the primes on some of the most demanding programs in the US military portfolio. Project Otto is a proof of concept: show that ITAR-free, additively manufactured defense hardware can meet the standards those primes require, and the model for distributed NATO manufacturing changes entirely.