Ключевые слова: aerobatic, air force, air show, aircraft, airplane, airshow, america, army, aviation, blue angels, california, close together, contrail, demo, demonstration, display, editorial use only, f18, fighter, fleet week, flight, flying, formation, group, hornet, jet, maneuvers, midair, military, navy, pilots, precision, san francisco, sf, show, sign, skill, smoke, squadron, supersonic, synchronized, team, trail, united states, us, us navy, usa, vapor, war,