US Navy Awards $90.6M MK 18 UUV Mine Countermeasures and EOD Support Contract
Technical Summary
Naval Information Warfare Center Pacific (NIWC Pacific) awarded a cost-reimbursement contract to Peraton on 4 May 2026 covering operational support and Fleet Support Representative (FSR) functions for the MK 18 Mod 1 (Swordfish) and MK 18 Mod 2 (Kingfish) Unmanned Underwater Vehicle (UUV) families. The base contract value is USD 17.3 million, covering one year of performance from 4 May 2026 through 3 May 2027; four additional one-year option periods, if exercised in full, bring the total ceiling to USD 90.6 million and extend performance to May 2031. Work is distributed across five geographic areas: San Diego (65 per cent), Little Creek, Virginia (15 per cent), and overseas at Rota, Spain; Bahrain; and Okinawa (20 per cent combined).
The MK 18 Mod 1, derived from the Hydroid REMUS 100 platform, is a man-portable, lightweight UUV rated for depths to 100 m and configured for mine reconnaissance using side-scan sonar and electro-optical/infrared (EO/IR) payloads. The MK 18 Mod 2 (Kingfish), derived from the REMUS 600, extends operational range and depth capability for more complex bathymetric and mine countermeasures (MCM) environments. Both variants provide mine reconnaissance data — detection, classification, and identification (DCI) — to support subsequent clearance operations by Naval Explosive Ordnance Disposal (EOD) forces, reducing operator exposure during the man-in-the-loop identification phase prior to mine neutralisation.
Analysis of Effects
The geographic distribution of FSR performance locations maps directly onto the US Navy’s three primary forward-deployed MCM frameworks: the US 3rd Fleet Pacific area (San Diego), the US 2nd Fleet Atlantic expeditionary warfare hub (Little Creek/Naval Amphibious Base Little Creek), and the forward-deployed theatres covering the US 6th Fleet Mediterranean (Rota), the US 5th Fleet Arabian Gulf (Bahrain), and the US 7th Fleet Indo-Pacific (Okinawa). The five-year contract ceiling preserves continuity of FSR expertise for a platform family that has accumulated significant institutional knowledge requirements across deployed EOD and MCM units.
The operational context for this award is significant: as of early May 2026, US naval assets are engaged in Operation Project Freedom, a Gulf of Oman/Strait of Hormuz escort and unblocking operation. Mine warfare has historically been Iran’s asymmetric tool of choice in the Strait, and the deployment of MK 18 UUVs would be consistent with the mine reconnaissance mission set required to support safe transit corridor establishment. The FSR structure — rather than a hardware production contract — indicates that the primary operational requirement is sustaining readiness of already-fielded systems rather than surging new production, consistent with an operational tempo requiring maximum fleet availability.
Personnel and Safety Considerations
EOD technicians and MCM operators should note that the FSR function provides on-site technical expertise at commands operating the MK 18, covering system maintenance, troubleshooting, and operator training support. For units conducting MCM operations in high-threat environments such as the Arabian Gulf, embedded FSR support reduces mean-time-to-repair (MTTR) for deployed UUV assets and maintains DCI data quality for mine threat characterisation. The MK 18 does not carry a neutralisation charge; post-reconnaissance, mine disposal remains a separate EOD operator task using dedicated neutralisation tools. Safety of Remaining Personnel (SORP) margins and appropriate Cleared Entry Distance (CED) calculation remain the responsibility of the supervising EOD officer following UUV-derived mine location data.
Data Gaps
DATA GAP: The precise number of MK 18 Mod 1/2 systems currently fielded across US Navy EOD and MCM units is not publicly disclosed; the geographic spread of the FSR requirement suggests a substantial deployed inventory. DATA GAP: Whether the contract scope covers software updates or sensor payload upgrades to address Iranian mine threat signatures specifically has not been publicly confirmed. DATA GAP: Deployment of MK 18 assets in direct support of Operation Project Freedom has not been officially confirmed; the Bahrain FSR element is assessed as consistent with Gulf contingency support but cannot be verified from open sources.
AI-assisted technical assessment based on open-source material only. Not a formal intelligence product. Sources: Defence Blog (4 May 2026), US Department of War Contract Announcements (May 2026). All open source / unclassified.