Why South Korea’s F-15 Eagles are Like No Other on Earth The Strike Eagle is a fighter-bomber variant of the F-15 Eagle, loaded with extra weapons pylons, fuel tanks and sensors at the cost of modestly decreased thrust-to-weight ratio and maneuverability. Here's What You Need To Remember: Seoul is also planning to produce 200 home-designed cruise missile to be mounted on its indigenous KF-X jet fighter, when and if that materializes. Until those are ready, the powerful Slam Eagle will remain South Korea’s top jet fighter—and one that plays an especially critical role in that country’s defense.