The Simulation Managers in today's world of air traffic are facing increasingly complex tasks. Deregulation and concentration in air traffic have intensified competition. The company strategy must be clearly defined and consistently implemented to survive in a highly competitive market. Sharpening this awareness and gaining insight into increasingly complex interrelations within an airline is the goal of our sophisticated airline simulation. The GAMS market model was revised in 2010 to simulate today’s market environment (shrinking premium segment, high pressure on sales prices, emphasis on cost effectiveness.