Trillium Engineering has introduced the HD59 series, a new line of advanced electro-optical/infrared (EO/IR) gimbal systems designed specifically for small UAS (sUAS), mid-sized unmanned platforms, and launched effects.
With multiple configurations available, the HD59 series is engineered to meet a wide range of mission requirements. Whether supporting long-endurance defense and security ISR, maritime domain awareness, border surveillance, or infrastructure protection, each gimbal provides the clarity and precision essential for complex operational environments. Its low-SWaP-C architecture further makes it a suitable fit for launched effects platforms, where lightweight, rugged payloads with advanced multi-spectral and targeting capabilities are critical to extending both reach and survivability in contested battle spaces.
The HD59 series is offered in three mission-configurable variants:
- HD59-LLVV – Dual LWIR + HD EO sensors, delivering wide and narrow thermal sensing at the lightest weight in its class.
- HD59-MLVV – MWIR + LWIR + Dual HD EO sensors, enabling long-range day/night identification and tracking.
- HD59-MLVS – A four-sensor system with MWIR, LWIR, EO, SWIR, and a 50mj laser designator, offering advanced targeting and designation in a package under 2kg.



All HD59 configurations are built to support AI/ML edge processing, with additional capabilities in development. Operators benefit from precision geopointing (typically within 6 meters CES90), exceptional EO identification ranges, and resilient performance in GPS-denied or contested environments.
Key advantages of the HD59 series include:
- Best-in-class sensors – Unmatched detection ranges, day or night, optimized for defense, security, and commercial ISR applications
- Lowest Weight – Unrivaled capability in the lightest package on the market
- Precision Geolocation – Precise target location, typically within 6 meters (CES90), with GPS-denied optimizations available
- Integrated AI Processing – Real-time, user-definable AI analytics deployed at the edge
- Rugged Reliability – Designed to IP 65, to withstand high-impact, high-demand environments
Matt Carreon, Vice President of Business Development at Trillium Engineering, “The HD59 series represents the next leap in airborne ISR performance for mid-sized UAS and launch effects. With multiple configurations, that include on-board processing for demanding AI applications, and precision targeting, these systems deliver the clarity, reach, and reliability operators need across every mission set.”
Trillium will showcase the full HD59 series at the AUSA Annual Meeting 2025, with all configurations on display.






