Our Schools > Elementary School > Educators > Trina Scanlan - Title I > What is IRLA?
The vertical stabilizer is to provide additional anti torque force to the fuselage once the aircraft has forward motion and airflow across the lifting surface. The design makes use of forward motion and the resulting airflow to create an anti torq...
At the top of the doorway is the slot for the vertical stabilizer. There are four entries to the bays located inside the building, which are the four largest doors in the world. Each door is 456 feet (139.0 m) high, has 7 vertical panels and 4 horizontal panels, and takes 45 minutes to completely open or close.