HTMS Chakri Naruebet (911) (Thai: จักรีนฤเบศร, meaning 'Sovereign of the Chakri Dynasty', the Thai monarchy's ruling family) is the flagship of the Royal Thai Navy (RTN), and Thailand's first and only aircraft carrier, although the RTN refers to her as an "Offshore Patrol Helicopter Carrier". Based on the Spanish Navy's Príncipe de Asturias design and constructed by Spanish shipbuilder Bazán, Chakri Naruebet was ordered in 1992, laid down in 1994, launched in 1996, and commissioned into the RTN in 1997. The ship is the smallest functioning aircraft carrier in the world.