Ключевые слова: aircraft, airplane, army, art, aviation, blue, blueprint, chopper, copter, delineation, design, detail, drawing, element, engineering, figure, flat, flight, geometric, geometry, graphic, helicopter, icon, image, industrial, industry, isolated, line, linear, machine, military, object, outline, paper, plan, print, side, silhouette, size, sketch, symbol, technical, technology, transport, transportation, vehicle, view,