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Sea surface · Sea surface systems

ASELSAN / Sefine MARLIN

A Turkish modular naval USV with documented entry into the Navy inventory and several separately advertised mission variants.

Role & capabilities

  • Maritime surveillance
  • Modular electronic-sensing payloads
  • Underwater-sensing support
In service / use documentedIn service / use documented
Primary domain
Sea surface
System type
Uncrewed surface vessel
Developer / manufacturer
ASELSAN / Sefine Shipyard
Origin / production countries
Türkiye
Other names
MARLİN; MARLIN ASV; TCB Marlin
Variants / configurations
MARLIN EW 100 — reported Navy inventory configuration; MARLIN ASW 100 — separately specified mission variant
Operators / programme customers
Turkish Naval Forces — MARLIN EW 100 identified in manufacturer annual report

Evidence & current status

Operational inventory evidence is for EW 100; most numerical data here are for ASW 100. Manufacturer data sheets state tolerances and possible specification changes.

MARLIN is a Turkish uncrewed naval platform developed by ASELSAN and Sefine Shipyard. The design uses a relatively large small-craft hull to support interchangeable sensing and mission equipment. Autonomous navigation and remote control are both part of the published architecture, with operators remaining able to supervise the vessel and its payloads.

ASELSAN's 2025 annual report identifies MARLIN EW 100 as the first uncrewed naval vessel to enter the Turkish Naval Forces inventory. That provides a stronger basis for status than exhibition appearances alone. It does not, however, prove that every configuration in the MARLIN catalogue has completed service acceptance.

The specifications here come primarily from the separately labelled ASW 100 data sheet. Its sensor options and payload arrangements must therefore not be assigned automatically to the delivered electronic-warfare vessel. Supplier literature also contains broad claims about operation under interference; these are not treated as proof of immunity. Finally, MARLIN is unrelated to the French DriX H-8 named Marlin by Shom, despite the shared name.

Sourced specifications

Figures apply to the named configuration. Maximum values are not guaranteed operating performance.

SpecificationReported valueContext & source
ConfigurationModular uncrewed naval vessel; autonomous or remote modesSupplier-published figure; configuration and operating conditions affect performance. Source ↗
Hull / propulsionASW 100: two 600 hp diesel enginesSupplier-published figure; configuration and operating conditions affect performance. Source ↗
DimensionsASW 100: 15 m length; 3.85 m widthSupplier-published figure; configuration and operating conditions affect performance. Source ↗
Displacement / massASW 100: 21 tonsSource term; loading condition not fully defined. Source ↗
PayloadASW 100: at least 4 tons advertisedNot proof of every delivered variant's payload fit. Source ↗
EnduranceASW 100: 72 hoursSupplier-published figure; configuration and operating conditions affect performance. Source ↗
RangeAt least 1,000 nautical miles in the earlier MARLIN sheetOlder generic baseline, not repeated in the ASW 100 sheet. Source ↗
SpeedASW 100: at least 35 knots maximum-speed ratingSupplier-published figure; configuration and operating conditions affect performance. Source ↗
Sea state / environmentNot established in the reviewed public sources.Public data gap; no estimate or neighbouring variant value substituted. Source ↗
SensorsRadar, AIS, forward-looking sonar; optional EO/IR and acoustic payloadsSupplier-published figure; configuration and operating conditions affect performance. Source ↗
Communications / controlSatellite, RF line-of-sight and cellular links; mobile control stationSupplier-published figure; configuration and operating conditions affect performance. Source ↗
Launch / deploymentPort or supporting naval ship deployments advertisedSupplier-published figure; configuration and operating conditions affect performance. Source ↗

Publication history

  • — Added sourced land and maritime coverage with domain-specific evidence and limitations.

Suggest a correction to this entry →

Follow the evidence

Source types identify who makes the claim. Programme milestones and supplier statements should be read in context.

  1. MARLIN ASW 100 data sheet, November 2024 (opens in a new tab)Manufacturer / programme
  2. ASELSAN Annual Report 2025, MARLIN inventory statement (opens in a new tab)Manufacturer / programme
  3. Earlier MARLIN Turkish-language data sheet (opens in a new tab)Manufacturer / programme

Explore the connections

Field guideGlobal

Uncrewed surface vessels & naval drones

Understand surface vessels used for naval observation, survey, mine-countermeasure support and other maritime roles, from small craft to larger experimental ships.

Reviewed 20 Sept 2026Read