"F11 Zemaitis" is a military frigate. Together with its twin "F12 Aukstaitis" it forms the squadron of combat ships of Naval Force of Lithuania.

Lenght of "Zemaitis" is 71 m, width - 10 m.

The crew of the ship is 66 seamen.

"Zemaitis" can reach speeds up to 30 knots.

Frigate is equiped with SA –MA (4R-33a) air defence –missile systems; 57 mm conjugated ordnance AK-725; AK –630 artillery systems; BB-1depth-bombs, RBS-6000 reactive bomb charges, SMERÈ –2 anti–vessel system, DÈK large calibre machines-gun. Crew members are armed with AK –47S, AKMS automatic rifles, and Makarov pistols.

The ship is nearing its exploatation resource and should be commisioned in 2008.