Turkey replaces SMART-S Mk2 radar with the MAR-D on TCG Bayraktar

According to a tweet published by Dimitris Mitch on November 5, 2021, the Turkish Naval Forces has replaced the SMART-S Mk2 radar with the MAR-D radar on the Bayraktar-class tank landing ship TCG Bayraktar.
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Russian Vyborg Shipyard laid the Purga ice class coastguard ship of project 23550 925 001 Bayraktar-class tank landing ship TCG Bayraktar (Picture source: Twitter account of SNMG2)

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).

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 system has two operating modes: medium range up to 150 km (81 nmi) at 27 RPM and long-range up to 250 km (130 nmi) at 13.5 RPM. The radar is mainly designed for light frigates, corvettes, and ships such as Landing Platform Docks (LPD). SMART-S Mk2 is designed to support the full performance of surface-to-air missiles (SAM), such as the RIM-162 ESSM.

MAR-D is a 3D naval platform search radar that can be used from short to medium range and can detect targets with air and surface surveillance.