The German Type 206 submarine U 20 underway on 24 May 1989 in the Baltic, seen from TURAIF (352), a B + V-built Saudi-Arabian coast guard patrol craft on yard acceptance trials at that time.
In later years she was part of the submarine deal with Indonesia. Formally handed over on 23 Sep 1997 as ALUGORO (407) and foreseen as a spare parts source, she was disposed of for scrap in 2001.