Palomino was an unfinished action/combat flight simulator. Air-to-air combat mode was never implemented. However, it does have a land-on-carrier and shoot-SAMs missions.
Requires OpenSceneGraph. Optional: SDL, FLTK.
Turkish Airborne Simulator is a 3D flight simulation. You can fly above the all earth surface or roam the earth with using mouse like Google Earth. TAsim is based on OpenSceneGraph and VirtualPlanetBuilder.