Aircraft Jet Fleet Mix Summary Reports

Operations for all Hours of the Day

The Aircraft Jet Fleet Mix report summarizes the number and type of aircraft operating at O'Hare International Airport. The report presents the average number and percentage of use for each aircraft type during all hours of the day for the current month. In 1990, Congress enacted legislation to eliminate all Stage 2 aircraft operating in the continental United States by the 2000. A program was created to "phase-out" the older, louder Stage 2 aircraft over a ten-year period to achieve full compliance by the 2000 deadline. As of January 2000, all aircraft operating at O’Hare Airport and within the United States were Stage 3. Stage 3 aircraft, such as the Boeing 757 (B757) and new Boeing 737’s (B737) use a quieter type of engine that significantly reduces noise at the source. Also, a Stage 3 aircraft can be a previous Stage 2 aircraft with the engines retrofitted with a "Hush-kit", such as a Boeing 727 (B72Q), Boeing 737-200 (B73Q) and DC-9 (DC9Q).

2005 Reports