When it comes to a battle for aerial supremacy, this is the missile which usually results in the US emerging as the victor. It's getting a little old now, but there's no need to replace it when it's still so good at what it's designed to do.
According to US military statistics, more than 250 enemy planes have been shot down using AIM-9 Sidewinders over the years. It's one of the cheapest missiles the Navy owns, but also one of the most trusted.