Ключевые слова: abstract, air, aircraft, airline, airplane, altitude, aviation, away, clear, clouds, contrail, destination, direction, empty, flight, fly, graphic, heading, high, horizontal, icon, illustration, jet, journey, line, plane, route, sign, simple, sky, space, summer, sunny, symbol, tiny, tour, trace, trail, travel, trip, vapor, way, weather, white, yellow,