Board Thread:Unanswered Questions/@comment-72.67.127.188-20150322165946/@comment-25069258-20150323210618

Considering the fact that all standard aircraft except for the five superplanes - X-02, ADFX-01, ADF-01, XFA-27 and R-101 - can be upgraded to lv. 15, i'm highly certain that the superplanes will also get the ability to reach lv. 15.