IN Brief:
- The award centres on a 10 Gigabit TSN network platform for an open-architecture ISR backbone upgrade.
- Deliverables include TSN switches, end points, and network scheduling and configuration tools aligned to an aerospace TSN profile.
- Integration work links TSN transport to SOSA-aligned avionics hardware and a safety-certified RTOS stack.
TTTech North America has been selected to deliver Time-Sensitive Networking (TSN) capability for the U.S. Army’s High Accuracy Detection and Exploitation System (HADES) aerial intelligence, surveillance, and reconnaissance programme, supplying a 10 Gigabit TSN network platform and associated software to modernise the aircraft’s digital backbone.
The HADES aircraft are based on government-furnished Bombardier Global 6500 jets, with the programme focused on replacing elements of the Army’s retiring turboprop ISR fleet through a higher-altitude, longer-range platform designed to carry deep-sensing payloads. The digital backbone is being positioned as an open-architecture network intended to support rapid upgradeability, reconfigurability, and lifecycle technology refresh, using a modular open systems approach (MOSA) to reduce integration friction across capability insertions.
Under the award, TTTech’s delivery includes TSN switch and end point products built to align with the IEEE 802.1DP TSN aerospace profile, alongside network scheduling and configuration tooling. The company is pitching the package as part of a wider deterministic Ethernet portfolio that spans standard Ethernet, ARINC 664 Part 7, TSN, and TTEthernet, with an emphasis on fault-tolerant behaviour and safety certification pathways.
“This award reflects our commitment to delivering innovative, network platform solutions that enable secure, highspeed connectivity for upgradeable mission-critical systems,” said Alvaro Soares, Director of Products and Customer Programs, TTTech North America. He added that the company expects to support the Army’s “future-ready digital backbone” direction across HADES and follow-on work.
The Army has framed the backbone upgrade as a prerequisite for tighter sensor integration and real-time operational use. “Enhancing the capabilities of the HADES digital backbone is central to our ability to integrate sensors, share data, and act in real time across airborne ISR platforms,” said Jeffrey Jablonski, U.S. Army HADES Program Lead, PEO Aviation, adding that the approach is intended to remain robust, scalable, and MOSA-aligned as new payloads and mission functions are fielded.
On the hardware side, TTTech’s TSN elements are expected to be incorporated into SOSA-conformant 3U-VPX Nodal Access Units and TSN switch line-replaceable units supplied by North Atlantic Industries, positioned as rugged COTS building blocks for airborne deployment. Separately, DDC-I’s Deos real-time operating system — certified to DO-178 DAL A and conformant with FACE — has been selected to support timing-deterministic mission processing aligned to MOSA integration practices.
HADES sits within a broader U.S. Army push to move airborne ISR and mission processing onto open architectures, with prime integration work already underway on the Global 6500 platform. As the jet-based fleet scales, deterministic networking is increasingly being treated as foundational infrastructure rather than an avionics afterthought, particularly where sensor fusion, high-rate ISR data movement, and time-bounded control loops are expected to coexist on shared transport.
