Aurora Labs Ltd Delivers First Commercial AU4 Systems to SPS
Aurora Labs begins first commercial AU4 deliveries to Sovereign Propulsion Systems
Aurora Labs (ASX: A3D) has delivered AU4 micro gas turbine (“MGT”) propulsion systems to commercial partner Sovereign Propulsion Systems (“SPS”). This marks the first delivery to a commercial customer for the company’s propulsion technology.
The MGT propulsion systems are being supplied under an existing $250,000 purchase order for 20 AU4 propulsion systems, with production and deliveries now progressing in batches.
For investors, the milestone demonstrates Aurora’s manufacturing capability translating into real product in a partner’s hands, an important step beyond development-stage testing.
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From delivery to flight: inside the SPS program
SPS is an Australian company providing design, engineering and local manufacturing of effects-based capabilities in support of Australia’s defence and security. The collaboration is structured in two parts: Aurora supplies the AU4 propulsion systems, while SPS develops the capability to integrate, operate and support those systems in the field.
That arrangement provides a pathway to evaluate Aurora’s propulsion technology in platform-based flight operations. SPS also holds rights to act as a distributor of Aurora’s propulsion systems to specified partner countries for a fixed three-year term (refer ASX announcement: 14 October 2025), providing a potential commercial pathway for the AU4 beyond the current program.
With first deliveries underway, the program is moving into platform integration. SPS is preparing to integrate the AU4 propulsion systems onto a flight platform at its flight-test facilities, where they will be evaluated under real-world conditions not fully replicated through Aurora’s own testing.
What in-flight testing will measure
In-flight testing is expected to generate detailed performance data across a range of operating conditions, including:
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Altitude
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Sustained flight duration
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Varying temperatures
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Manoeuvring loads experienced in flight
The data is intended to support validation of system reliability and integration readiness across field operating conditions relevant to potential customer and platform requirements, and to inform Aurora’s propulsion development pathway.
Why micro gas turbine propulsion matters
Aurora’s MGT propulsion units are designed for compact, high-performance applications relevant to UAVs, autonomous systems and attritable defence markets, including one-way effectors, loitering munitions and counter-UAS platforms.
The flight-test program is intended to support validation of Aurora’s propulsion technology for integration into these classes of platform. This aligns with the company’s broader platform-agnostic commercialisation strategy.
Aurora’s platform-agnostic approach is also visible in its international partnerships, with a three-year teaming agreement with MBDA establishing a structured framework for integrating 3D-printed propulsion into next-generation European weapons platforms.
| Milestone | Detail | Why it matters |
|---|---|---|
| First commercial delivery | AU4 MGT systems shipped to SPS | Manufacturing capability now producing real product |
| Purchase order | $250,000 / 20 units | Defined commercial scope |
| Flight integration | SPS preparing platform integration | Real-world validation beyond Aurora’s own testing |
| Distribution rights | SPS distributor to specified partner countries, fixed three-year term | Potential route to market beyond current program |
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The investment case and what comes next
The SPS relationship now supports both validation and a route to market. The flight-test program provides real-world evaluation of the AU4, while SPS’s distribution rights offer a potential commercial channel into specified partner countries.
The disclosed next steps follow a clear sequence: platform integration, in-flight testing, performance data generation, and the potential conversion of that work into commercial orders. The $250,000 purchase order for 20 AU4 propulsion systems remains the only disclosed financial figure attached to the program, with no further order values or timelines confirmed.
Director commentary
Rebekah Letheby, Chief Executive Officer
“Commencing AU4 deliveries to SPS is a significant operational milestone and moves the program directly into platform integration. Producing and shipping propulsion systems in batches demonstrates our manufacturing capability translating into real product in a partner’s hands. SPS’s flight operations capability gives us a practical route to demonstrate the system in relevant operating conditions, while also opening future customer engagement and platform integration opportunities. With SPS also able to distribute our propulsion systems into partner markets, the relationship now supports both validation and a route to market — and our focus from here is converting that into commercial orders.”
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