The Concept 4 originated as a prototype built by the IMS in their constant search for innovation. It was a multirole, single-engine jet built for one pilot. With time, an updated version was created by another company. This was designated the Concept 4 (85). It had more swept-back wings, an extra engine, a modified fuselage, and several other minor changes. Now, Aerodynamics International has taken an interest in this vehicle. Basing their model on the upgraded Concept 4 (85), they have built undoubtedly one of their best multirole jets to date. It is fast, it is manoeuvrable, and it is dangerous. This is the XF-50 “Wraith”. Thanks to:85wotandwows for creating the Concept 4 (85)(https://www.simpleplanes.com/a/BeQeK4/Concept-4-improved), Zaineman for creating the tracking radar(https://www.simpleplanes.com/a/wqFRE5/Animated-Sweeping-Radar-with-real-time-enemy-tracking), and PlanariaLab for creating the HUD(https://www.simpleplanes.com/a/0dH9ML/1Parts-HUD)