LOKKI class

 2 LOKKI-class TRAINING SHIPS (AX)

 Name      Pendant   Laid down        Launched         Commissioned    Status
 LOKKI     57        ....             1981             Oct. 3, 1981    Active
 KAJAVA    56        Nov. 25, 1985    March 25, 1986   Aug. 28, 1986   Active
 KIHU      ....      April 7, 1986    July 1986        Dec. 17, 1986   Trans/Lithuania
 TIIRA     ....      March 11, 1985   Sept. 5, 1985    Nov. 1, 1985    Trans/Latvia

The LOKKI was the prototype for this...