It looks like a totalt engineering marvel, but a fighter plane is a fighter plane. I mean does it justify the U.S, spending billions of dollars on these planes that may never be fully utilized? I don't kow if it does.The F-15 is probably one of the most gorgeous and sturdy Aircraft made, these are some really impressive upgrades to an already highly versatile fighter. Here's a small video I could find of one flying. Having seen many F-15s at Airshows, videos never do them justice.