Board Thread:Unanswered Questions/@comment-184.1.6.171-20160412013036/@comment-1824272-20160426185800

You need 10 Skilled Pilot Medals to acquire the MiG-31B -Gaviria-. When you purchase it with those medals, it will be available in your Aircraft Tree ready for purchase at Lv.1.

"Increased maximum level" just means that the MiG-31B -Gaviria- can go to Lv.12 before you need to use Lv. Cap Increase Request Forms.