UNCREWED. UNLIMITED POTENTIAL.
INDOPAC 2025
Proven Automonous Capability At Sea
With proven autonomous solutions already in the water, Leidos is setting the pace when it comes to the most challenging aspects of uncrewed system requirements at sea. Leidos’ Sea Systems portfolio includes operationally proven medium USVs - Sea Hunter, Sea Hawk, Ranger, Mariner - as well as a range of undersea systems including Sea Castle, Sea Spector and Sea Dart, a fast, mission-adaptable small USV, Sea Archer.
Visit us at the IndoPacific International Maritime Exposition (4-6 November 2025), in Sydney.
Maritime Autonomy for the Australia-Pacific Region
With a 50-year heritage with the US Navy and a record 140,000 operational autonomous nautical miles at sea, Leidos has the only proven oceangoing autonomous system that can operate in fleet. We’re fast-tracking these proven capabilities to Australia to enable the fleet of the future.
Sea Archer
With Leidos’ Autonomous Vehicle Architecture, 40 knot speed, and 1500 nautical mile range, Sea Archer can carry more than 900 kg of enclosed payload and can support strike, logistic resupply, ISR and EM deception operations. It can also operate in swarms.
See it in action below.
Sea Dart
Sea Dart, is a compact, modular, and low-cost uncrewed undersea vessel (UUV) designed for versatile mission profiles including mine countermeasures, infrastructure monitoring, and oceanographic research. Its open architecture allows compatibility with a range of systems, and its lightweight design—available in 15cm and 22cm diameters —enables deployment by just one or two people.
Watch the video below to find out more or check out our fact sheet.
Sea Castle
The ultimate force multiplier for unmanned underwater vehicles (UUVs), Sea Castle™ provides in-water recharging, data transfer, and mission updates to extend operations without breaking the surface. Sea Castle is compatible with multiple vehicle types and is supported by Mahi and OptiNAV software.
See it in action below.
Leidos Autonomous Vessel Architecture (LAVA)
LAVA, or Leidos Autonomous Vessel Architecture, is the core autonomy system developed by Leidos to power uncrewed surface vessels (USVs). A sovereign
It enables:
- Full autonomy: Supports navigation, obstacle avoidance, and mission execution without human intervention.
- Modular integration: Can be deployed across multiple vessel types and sizes.
- Mission flexibility: Enables ISR, logistics, electronic warfare, and more.
- Blue water performance: Used in record-setting endurance missions across the Pacific.
Acoustic Device Countermeasure Mark 5 (ADC MK5)
ADC MK5 is the U.S. Navy’s next-generation torpedo countermeasure. This autonomous, 3-inch expendable device launches from a submarine’s internal system. ADC MK5 enhances submarine defense and can be adapted for other applications, ensuring the Navy stays ahead of evolving undersea threats.
Watch it in action below.
Built in Australia, Mission Ready by 2026
Leidos has commenced the Australian build of Sea Archer - a next-generation Uncrewed Surface Vessel (USV), as it expands into the maritime autonomy domain in the Australia-Pacific region.
The Australian production of Sea Archer will use local capability across the supply chain to ensure a robust sovereign ecosystem, rapid production and sustainment.
NSW Central Coast-based Oceans Rivers Lakes appointed to build the first aluminum vessel. With rapid production capability because of its easy-to-build aluminum hull, Sea Archer can built at multiple shipyards across Australia.