[3][4] The name "TT-400TP" is abbreviated by Vietnamese words: TT is Tuần Tra (Patrol), 400 is over 400 tons, TP is Tàu Pháo (gunboat).

[5] The ships were constructed under the purview of Colonel Nguyen Van Cuong.

[10] In 2015, Asia Times reported rumors that the Philippines was potentially willing to purchase TT-400TP ships.

[12] TT-400TP class ships have gun control automatic weapons on the sea with four tasks: destroying hostile amphibious ships and corvettes of the enemy and protecting the base of the amphibious fleet and fleet escort in the operation of ships in service forces and forces scan mines, protection of civilian ships at sea and tactical reconnaissance planes of the water.

[14][15] Its speed is 32 nautical miles per hour and it can operate on sea for 30 days.