SMART-S Mk2 (Signaal Multibeam Acquisition Radar for Tracking, S band Mk2) is a naval medium to long-range air and surface surveillance multibeam passive electronically scanned array 3D radar designed by Thales Nederland, formerly Hollandse Signaalapparaten (Signaal). While the original SMART-S radar was only produced in small numbers, SMART-S Mk2 is very successful. Only six years after its introduction, 30 systems were sold to navies all over the world. SMART-S Mk2 radar is equipped with transmitter/receiver (T/R) modules manufactured by Turkish defence company Aselsan. The radar transmitter/receiver (T/R) modules for the radar are purchased by Thales from Aselsan.

The Ada class is a class of anti-submarine corvettes developed primarily for the Turkish Navy during the first stage of the MILGEM project. The Turkish Navy has commissioned all four Ada-class corvettes.