Sukhoi Su-27 demonstration at Paris-Le Bourget airshow 1989

The Soviet Su-27 made debut to western world. The test pilot Viktor Pugachev demonstrated a maneuver called Cobra that would later be called “Cobra de Pugachev“. The Soviet Air Force began receiving Su-27s in June 1985. It officially entered service in August 1990. excerpt from World Aviation Video “Paris Air Show 89“