Rocket Lab Launches 3D Printed Hypersonic Vehicle in DIU-Backed Test — Hypersonix DART AE Reaches Mach 5+

In a landmark flight that signals the growing role of additive manufacturing in defense technology, Rocket Lab successfully launched a 3D-printed hypersonic test vehicle developed by Australian company Hypersonix as part of a Defense Innovation Unit (DIU) program.

First Commercial Hypersonic Test Platform

The mission, dubbed Cassowary Vex, deployed the DART AE (Demonstrator for Autonomous Responsive Targeting Autonomous Experimental) hypersonic aircraft aboard Rocket Lab's HASTE (Hypersonic Accelerator Suborbital Test Electron) vehicle from the Virginia Spaceport Authority's Mid-Atlantic Regional Spaceport on Wallops Island, Virginia.

This flight marked the first deployment of a commercial testbed developed under the Pentagon's Hypersonic High-Cadence Advanced Testing (HyCAT) program, which aims to create low-cost, reusable platforms for rapid prototyping of hypersonic systems.

3D Printing Enables Rapid Development

The DART AE vehicle is entirely built using additive manufacturing techniques, with Hypersonix leveraging 3D printing to produce the complex scramjet engine components and airframe. This approach allows for rapid iteration and manufacturing of geometries that would be impossible with traditional fabrication methods.

The successful flight validates the structural components, manufacturing processes, and supporting supply chain we've developed, said a DIU spokesperson following the mission.

Mach 5+ Performance

The hypersonic demonstrator reached speeds exceeding Mach 5 (five times the speed of sound) during its suborbital flight, collecting critical data on propulsion, trajectory, and vehicle performance under extreme thermal and aerodynamic conditions.

This test represents a significant step forward in the US and Australia's collaborative efforts to develop affordable hypersonic capabilities. Hypersonix, based in Brisbane, Australia, has positioned itself as a key player in the global hypersonic technology race, with its 3D-printed approach offering particular advantages for rapid development cycles.

Why This Matters

Hypersonic weapons and aircraft represent the next frontier in defense technology, capable of traveling at speeds above Mach 5 while maintaining maneuverability. The traditional development cycle for such systems has been prohibitively expensive and time-consuming.

By leveraging additive manufacturing, companies like Hypersonix can produce flight-worthy components in weeks rather than months, dramatically reducing both cost and development time. The successful Cassowary Vex mission demonstrates that commercial-off-the-shelf 3D printing approaches can meet the stringent requirements of hypersonic flight.

This collaboration between Rocket Lab, Hypersonix, and the DIU points to a new model for accelerating hypersonic technology development—one that combines commercial innovation with defense priorities.