Programme hub · Naval · SubmarinesMİLDEN Programme
Türkiye’s first indigenous submarine programme: test-block construction, national design, combat-system localisation, propulsion and weapons integration.
TürkiyeLast verified 2026-08-22
StatusDesign maturation and test-block construction
Current status
MİLDEN is Türkiye’s indigenous submarine programme and represents the next stage after experience accumulated through the REİS-class and submarine-modernisation programmes.
The Ministry of National Defence has confirmed that construction of the first MİLDEN test block has begun at Gölcük Naval Shipyard. ASFAT has also been identified by the ministry as holding a major contractor role in the programme.
Why it matters
A domestically designed submarine represents one of the most demanding levels of naval industrial sovereignty because it combines hydrodynamics, quieting, propulsion, sonar, combat systems, weapons and underwater survivability.
What we track
Design maturation; test blocks; propulsion; sonar; combat management; AKYA and future missile integration; construction milestones; launch and sea trials.
Primary sources
The factual fields on this page are refreshed from primary sources, not from our own archive: past coverage provides context, but it is not the source of truth for current programme status. How we source and verify is set out in our Sourcing Policy.
