Ключевые слова: airfield, airport, area, asphalt, aviation, background, circle, cloud, concrete, emergency, empty, field, flight, green, helicopter, helipad, heliport, high, hill, horizon, land, landing, landscape, lights, mountain, nature, pad, painted, peak, place, rescue, scene, sign, signal, sky, space, symbol, top, transport, transportation, travel, view, white, yellow,