Practice run on various existing aircraft and other simpler futuristic concepts. Clockwise: B-2 Spirit Bomber, side, top, front and back. Side view includes aerodynamic flow lines; SR-71 Blackbird Reconnaissance Jet, top, front, and side. Note the curve on the engine; F-117 Nighthawk bomber, top and side. Side view includes aerodynamic flow lines; a nonfinished top-view of a Blended Wing Body (BLB) concept aircraft; another top view of a semi-finished BLB concept aircraft; side view of a supersonic aircraft. Note that the engines are below the main hull; perspective view of a smiple BLB aircraft