The Landing Challenge consists of two rounds (including run-offs and finals) where two team members are required to perform a landing of the Space Shuttle Enterprise flight simulator and the operation and responsibilities of the mission control team. Each team member will perform both duties. One of the two landings will be an instrument-only landing. The two Landing Challenge team members may not be the Mission Commander, Pilot or Flight Engineer. A random drawing will be used to select the instrument-only pilot.