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The sources of pollution from aircraft and airports are reviewed, with emphasis placed on the industry's current understanding of the magnitude and control technology applicable to such sources. The progress of industry activity in reducing pollution from aircraft is presented, including on-going research directed at defining the impact, source strength, and applicable control technology. The unknowns and the areas in which research is needed and not currently under way also are identified.

THE FIRST YEAR of jet airline operation has brought many problems — and satisfactions — to the industry. Here the author discusses some of the more serious problems: 1. Scheduling. American Airlines used the “Monte Carlo” method to calculate payloads and flight times. 2. Baggage handling. Almost nothing annoys a passenger more than long waits for baggage at the end of a flight. One approach to the problem is the baggage expediter system. 3. Mechanical shutdowns. 4. Runway length. 5. Noise. Noise suppressors have not been effective enough, from the standpoint of communities surroundings airports. Development of the turbofan engine offers some hope in this area.*