C-UAS DB
← Drone Database

Sea-Skimming Attack USV

Naval / UnderwaterThreat: CriticalOpen-Source Verified

Unmanned surface vessel optimized for high-speed, low-profile strikes against warships and port infrastructure. Distinct from generic naval USV/UUV platforms: purpose-built for one-way attack with a large explosive charge, semi-autonomous waypoint navigation, and terminal operator control via satellite or relay drone. Re-shaped Black Sea naval doctrine and is now a top-tier threat to surface fleets worldwide.

Technical Specifications

range
400–1,000 km
speed
60–80 km/h (sprint)
payload
200–850 kg shaped or HE warhead
endurance
30–60 h cruise
frequency
Satcom (Starlink-class) + LOS RF terminal
cost Estimate
$250,000–$500,000
altitude
Surface (wave-skimming hull)
weight
1,000–5,500 kg

Tactical Roles

StrikeISR

Advantages

  • + Extremely low radar and IR signature against sea clutter
  • + Cost-exchange ratio devastating vs. frigates/destroyers ($300K vs $1B+)
  • + Long range allows launch from outside enemy A2/AD bubble
  • + Salvo tactics overwhelm point-defense gun systems
  • + Satcom control means operator is hundreds of km away
  • + Can carry secondary payloads (recon, EW, even loitering munitions)

Disadvantages

  • − Sea-state limited — heavy weather degrades targeting
  • − Slow relative to anti-ship missiles — alerted ships can maneuver
  • − Vulnerable to helicopter-launched gunfire and Hellfire
  • − Satcom link is the single point of failure if jammed
  • − Limited terminal maneuverability against agile small boats

Real-World Usage

  • ▸ Ukrainian Magura V5 — sank/damaged multiple Russian Black Sea Fleet vessels including Sergey Kotov, Caesar Kunikov (2023–2024)
  • ▸ Ukrainian Sea Baby — used in Kerch Bridge attack (Jul 2023) and BSF strikes
  • ▸ Houthi Tufan / Asef-class explosive USVs — attacks on commercial and military shipping in Red Sea (2024)

Counters This Drone

Countermeasures ranked by effectiveness — tap any system for details

Counter-UAS Radar SystemHighMedium/Long-Range SAM SystemHighRF Jamming SystemMediumGPS Spoofing / Navigation WarfareMediumLaser Directed Energy WeaponMediumInterceptor Drone (Drone-on-Drone)MediumDirectional EW Rifle / Jammer GunMediumMANPADS (Stinger/Igla class)MediumHigh-Power Microwave (HPM)MediumDecoys / Signature ManagementMediumAI Vision Detection (EO/IR)MediumProgrammable Airburst Cannon (30/35/40mm)MediumPassive Bistatic / Multistatic RadarMediumAcoustic Detection SystemLowC-UAS Autocannon / Dedicated AA GunLowRF Detection / Spectrum AnalyzerLowAnti-Drone Laser DazzlerLowLocalized EMP DeviceLowMan-Portable EW BackpackLowNet-Carrying Interceptor DroneLowSmart Fire-Control Optic (SMASH-class)LowAcoustic Resonance Disruption (LRAD-class)LowIntegrated C-UAS Battle Management (Sensor Fusion)LowShotgun / Small Arms InterceptNoneNet Gun / Net LauncherNoneCyber Takeover / Protocol ExploitationNoneFiber-Optic Specific CountermeasuresNoneSmoke / Obscurant ScreenNonePhysical Overhead ProtectionNonePassive RF GeolocationNoneHardened PNT / CRPA AntennaNoneAnti-FPV Net Tunnels & CurtainsNone

⚠ How This Drone Evades Defenses

Active adversary tactics — not passive limitations

  • ▸ Wave-skimming hull defeats most ship search radars below sea-state 3
  • ▸ Approach from multiple bearings simultaneously to split point defenses
  • ▸ Starlink relay makes RF DF and jamming difficult at range
  • ▸ Coordinated launch with aerial drones to overwhelm CIWS

Sources & Further Reading

About our sources