Tuning, Acepedia

Aircraft tuning (チューニング) is a gameplay feature that allows players to equip modification parts to their aircraft. These parts change an aircraft's capabilities in various ways, from its flight mechanics to its weapon performance. Tuning was first introduced in Ace Combat X: Skies of Deception, where players can equip one part to five categories but only on most fictional aircraft. This system returned and expanded to all aircraft in Ace Combat: Joint Assault and Ace Combat: Assault Horizon Legac

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