Country: Bulgaria
Class, [Type]: Sonya, [MSC].
Builder: Avangard Zavod, Petrozavodsk.

Displacement ( tons ): 427, 460 full load.
Dimensions ( metres ): 48,8 x 10,2 x 2,5
Main machinery: 2 x DRA-210-A or DRA-210-B diesels ( 2.200 or 2.000 hp ).
Speed ( knots ): 14.
Range ( miles ): 1.700 at 10 knots.
Complement: 45 ( 5 officers ).

Guns: 1 x twin 30mm/65 AK-230M, 1 x twin 25mm/80 2M-3M.
Mines: 5.

Radar: Navigation: 1 x Mius ( Spin Through ).
Sonar: MG-89 Serna, high frequency, hull-mounted. NEL-MZB echo sounder.

Comment: Wooden construction with glass-reinforced plastic hull sheathing.