Things You'll Need
Instructions
Brainstorm and sketch your model aircraft. There are a number of fighter aircraft in the world, so choose one to base your device on.
Build the bottom of the fuselage of your airplane. Use a series of upward angled bricks and plates to make a long, narrow boat shaped base. You can make the length and width whatever dimensions you would like them to be, and can make it wide or narrow enough to accommodate a pilot.
Build a pair of wings. Wings should be roughly triangular in shape, using LEGO wing pieces. Depending on the design of your aircraft, you will need either a pair of front wings and a pair of stabilizers on the tail, or you may have a delta-wing design in which case the wings extend along the entire body of the aircraft.
Assemble the cockpit of the aircraft. Put a seat in the cockpit, and a brick with computer components painted on the side in front of that. Some aircraft have two pilots inside the cockpit, one of whom is the co-pilot, whose seat is slightly elevated above the pilot. You can make this design if you would like.
Seat your pilot or pilots in the cockpit of the aircraft.
Build up the walls of the tail of the vehicle, and build an engine into the tail of the vehicle. Make the vehicle tall enough to accomodate the pilot(s).
Attach a canopy over the cockpit. There are a number of different canopy styles which LEGO makes, find one which most fits your aircraft.
Attach any accents or weapons you desire to the vehicle. Some jet fighters are equipped with machine guns and missiles.