This makes me sad for some reason. The turbine engine in an F-16 or F-4 is a beautiful piece of machinery. Design and functionality merged entirely really. And

This makes me sad for some reason. The turbine engine in an F-16 or F-4 is a beautiful piece of machinery. Design and functionality merged entirely really. And they just blow them up. Although they likely use high-hour engines (as I know a lot of jet engine cores get sold to use as power generators), it still makes me sad. Like retiring an old iPhone.