Things You'll Need
Instructions
Find plans for your airplane online and print them. If your plans include part templates, cut these out.
Draw or trace the parts of your airplane on the foam board. Use the ruler or template pieces to measure the dimensions of each piece and mark the parts' outlines.
Cut out the parts of the airplane with the utility knife or hot wire cutter. A hot wire cutter makes smoother cuts and is better for this type of project.
Glue the model plane together following the directions on your plan. Lay dabs of glue along the edges of the pieces of foam, and stick them in place. Leave the glue to dry overnight.
Wire the motor and propeller to the receiver and the battery following the included instructions. Attach both to the plane with glue and cable ties.
Glue the body of a servo to the wing or tail of the airplane. Hook the pushrod into the Styrofoam of one of the flaps. Connect the servo arm to that pushrod. Wire the servo into the receiver according to the directions included with your servo.