looking out an airplane window at clouds and the san gabriel mountains under the wing

flight sky aircraft wing vehicle airplane horizon cloud aviation wind sea plain screenshot reflection morning ocean blue airline wave sunlight looking window clouds gabriel mountains wingshot clouds airplane sky wing plane travel air fly flight aircraft flying view cloud window jet transportation horizon aeroplane aerial aviation high nacelle airline blue 737 737-900 boeing midwest aerial farms aerospace engineering propulsion skies winglet curvature business united airlines jet engine lift aileron mountains landing flaps control surfaces