Coba jelasin Rujukan dari Frigat kelas Constellation dalam bahasa melayu dong

RFI Solicitation Number: N0002418R2300 - 2017-07-10; response by 24 August 2017

Navy Releases Details of New FFG(X) Guided-Missile Frigate Program in Request to Industry, Megan Eckstein, US Naval Institute News, 2017-07-10</ref>

Proposed ships of the United States Navy

Frigates and destroyer escorts of the United States Navy