The pilots at Sun Aero Helicopters Inc. have been training pupils in the autogiro arts and transporting clients through the skies since 1991. Inside their base at Lansing Municipal Airport, aviators maintain a 12,000-square-foot hangar area and 3,000 square feet of training offices and high-speed computerized flight-planning facilities. Expert pilots impart their knowledge to up-and-coming FBI agents, police officers, emergency medical technicians, and leisure pilots during one-on-one training sessions in Robinson and Bell copters. Pilots also give landlubbers a skyscraper's view of Chicago's landmarks, such as US Cellular Field, the John Hancock building, and the Sears/Willis Tower. When they aren't transporting rally drivers, golfers, and famous wiffle ball players with private charter services, Sun Aero serves national media companies with aerial photography and land surveys.