Norwegian defense technology prime Kongsberg Gruppen ASA (Kongsberg Maritime / Kongsberg Defence & Aerospace) has been awarded a $54 million contract modification by the U.S. Department of War’s Defense Innovation Unit (DIU).
Executed as an amendment to an existing Prototype Other Transaction (OT) Agreement, the contract expansion finances the accelerated procurement and field delivery of a broad portfolio of autonomous underwater vehicles (AUVs)—principally centered on the HUGIN family of deep-water unmanned undersea systems—alongside specialized underwater sensor payloads, launch-and-recovery systems (LARS), and autonomous undersea C4ISR architectures. The procurement supports DIU’s mandate to field attritable, long-endurance autonomous undersea vehicles to enhance undersea domain awareness (UDA), seabed warfare protection, and subsea infrastructure monitoring across contested maritime theaters.
TECHNICAL SPECIFICATIONS: KONGSBERG HUGIN AUV FAMILY & UNDERSEA ARCHITECTURE
Contractual Governance, OEM Prime & Program Framework
⚡ Prime Contractor: Kongsberg Gruppen ASA (Kongsberg Maritime — Horten, Norway / Houston, USA)
⚡ Contracting Authority: U.S. Department of War — Defense Innovation Unit (DIU, Mountain View, California)
⚡ Contract Vehicle: Prototype Other Transaction (OT) Agreement Modification
⚡ Contract Valuation: $54 Million USD (Incremental expansion of existing undersea prototype agreement)
⚡ Primary Operational Mandate: Deep-water autonomous seabed mapping, mine countermeasures (MCM), anti-submarine warfare (ASW) barrier tracking, and critical undersea infrastructure protection (CUIP) 
HUGIN AUV Platform Engineering & Kinematics Baseline
💥 Platform Family Variants: HUGIN 1000, HUGIN Superior, HUGIN Endurance, and compact HUGIN Edge configurations
💥 Depth Envelope & Endurance: Operating Depths: 3,000 meters to 6,000 meters (9,800 to 19,700 ft); Operational Endurance: 24 hours to over 15 days (HUGIN Endurance variant)
💥 Propulsion & Power Architecture: High-energy pressure-tolerant Lithium-Polymer (LiPoly) battery arrays driving a low-noise single-propeller brushless DC motor assembly
💥 Hydrodynamic Configuration: Low-RCS composite torpedo-shaped hull optimized for low-drag laminar flow, high acoustic transparency, and ultra-quiet acoustic signature profiles
Sensors, Processing & Autonomous Navigation Suite
🚀 Primary Mapping Sensor: HISAS (High-Resolution Interferometric Synthetic Aperture Sonar) 1032 / 1032 Dual-Rx producing high-area-rate (up to 4.5 km²/hr) sub-decimeter imagery and bathymetry
🚀 Auxiliary Payload Suite: EM 2040 Multibeam Echosounder, Sub-Bottom Profiler (SBP), Magnetometer, Cathodic Protection Sensor, and High-Resolution Optical Stills Camera
🚀 Autonomous Navigation Architecture: Terrain-Referenced Navigation (TRN), Doppler Velocity Log (DVL), Micro-Electro-Mechanical Gyro In-Air INS, and acoustic positioning (HiPAP / LBL / USBL)
🚀 Mission Autonomy & Edge AI: Onboard real-time Automatic Target Recognition (ATR) algorithms capable of detecting, classifying, and prioritizing undersea contacts (mines, cables, pipelines) without surface human intervention
TIMES OF DEFENCE ASSESSMENT
The $54 million DIU contract modification awarded to Kongsberg highlights the accelerating shift in U.S. undersea warfare strategy: transitioning from sole reliance on costly crewed nuclear submarines to distributed fleets of long-endurance Autonomous Underwater Vehicles (AUVs). The contested undersea domain—spanning deep-water ocean basins, shallow littoral chokepoints, and critical submarine communications cable routes—demands persistent sensor coverage that crewed platforms cannot provide alone.
From an engineering and undersea C4ISR perspective, the integration of Kongsberg’s AUV architecture offers several key advantages:
1. **Unmatched Area Coverage via Synthetic Aperture Sonar**: Utilizing the HISAS 1032 interferometric synthetic aperture sonar allows HUGIN platforms to generate sub-decimeter imagery across wide swaths of the ocean floor at speeds up to 6 knots. This provides military operators with rapid, high-resolution seabed mapping for mine countermeasures and subsea cable inspection.
2. **True Deep-Water Operational Autonomy**: The combination of high-density lithium energy storage, Inertial Navigation Systems (INS), and Doppler Velocity Log (DVL) sensors enables platforms like the HUGIN Endurance to operate independently for days or weeks beneath ice or across thousands of miles without requiring continuous acoustic updates from surface vessels.
3. **Agile Other Transaction (OT) Procurement**: Leveraging DIU’s Prototype OT Agreement framework allows the Department of War to bypass traditional, multi-year acquisition cycles, rapidly fielding commercial-off-the-shelf (COTS) deep-sea autonomy directly to operational commanders in the Indo-Pacific and Atlantic theaters.
