Under the wing of the plane, the mountains are turning white (apparently, the alps), because he directed the way to europeUnder the wing of the plane, the mountains are turning white (apparently, the Alps), because he directed the way to Europe
The military army is preparing to take off by planeThe military army is preparing to take off by plane
Путь судна, самолёта и т. п. по определённому маршруту.