 The 21 remaining Sea Kings are tasked to a variety of roles including SAR , transport , disaster relief , tactical land – sea transport , evacuation , surveillance , reconnaissance and naval support . The main base is Nordholz , although units are always stationed at Heligoland Airport and Warnemünde , and sometimes at Borkum Airfield . The helicopters are scheduled to be replaced by the NH @-@ 90 . 
