FS400 numufana wacu ukomeye, ukomeye, kandi uhindagurika cyane. Igikoresho kirahuzagurika, ikizunguruka cyuzuye hamwe na airodynamic airfoil ntabwo itanga gusa umwuka wimbere mumwanya wimbere aho ukeneye cyane, kugenzura umuvuduko wihuse uhindura Inkunga ituma uyikoresha ahitamo ikirere gikwiranye nibyo bakeneye.