On November 27, 2025, German shipbuilder TKMS announced the delivery of the second Reis-class (Type-214TN) air independent propulsion (AIP) capable submarine to the Turkish Navy.
On May 29, 2025, the Turkish Ministry of Defence announced that the third submarine of the Reis-class project, the future TCG Muratreis, was launched at
The Indian MoD inked deals for the construction of an AIP plug and for the integration of an electronic heavyweight torpedo for the Kalvari-class submarines.
Navantia’s shipyard in Cartagena has completed the installation of the Hydrogen based Air Independent Propulsion System (AIP) into a S80 class submarine.
Spanish shipbuilder Navantia announced it was starting to fit air-independent propulsion (AIP) system on the third S-80 class submarine, the Cosme Garcia (S-83).
Norway’s new Type 212CD submarines will bring air-independent propulsion (AIP) to the Royal Norwegian Navy’s submarine flotilla for the first time.
Navantia has successfully completed the factory acceptance tests of the AIP BEST system for the S-80 submarines.
L&T and DRDO signed a contract for the realization of two AIP System Modules for Kalvari-class Submarines of the Indian Navy.
TKMS signed a MoU with MDL on the intended construction of conventional, air-independent propulsion submarines on 7 June 2023.
DRDO & Naval Group sign agreement to integrate the Fuel Cell Air Independent Propulsion (AIP) system onboard Indian Navy Scorpene type submarine INS Kalvari.
