The Lockheed Martin F-22 Raptor is a fighter jet used by the US Air Force. It's fast and powerful, and able to fly higher and farther than many other planes. It's also very stealthy—which means that it can fly without being noticed. It has special technology built into it that lets it blend in with its surroundings and not be seen on radar. This means that even when it's in the sky, it can stay hidden from the enemy.