Board Thread:Wikia Discussion/@comment-25280240-20150618032853/@comment-25280240-20150618154803

Luke Br wrote: instant bookmark. great. thank you. I still don't understand about the "plane must be unlocked" part. does it mean you must upgrade the plane to +10 in Akashi's Improvement Arsenal so it can be upgraded? No those Model Change quests are specific for Hiryuu, Souryuu, and Unryuu. You unlock those quests by meeting the requirements of other quests. There are no quests like those that require you to upgrade equipment through Akashi as of yet.