The Strategic Environmental Research and Development Program (SERDP) has initiated several programs to develop and evaluate techniques to characterize emissions from military aircraft to meet increasingly stringent regulatory requirements. This paper describes the results of a recent field study using extractive and optical remote sensing (ORS) techniques to measure emissions from six F-15 fighter aircraft. Testing was performed between November 14 and 16, 2006 on the trim-pad facility at Tyndall Air Force Base in Panama City, FL. Measurements were made on eight different F100 engines, and the engines were tested on-wing of in-use aircraft. A total of 39 test runs were performed at engine power levels that ranged from idle to military power. The approach adopted for these tests involved extractive sampling with collocated ORS measurements at a distance of approximately 20-25 nozzle diameters downstream of the engine exit plane. The emission indices calculated for carbon dioxide, carbon monoxide, nitric oxide, and several volatile organic compounds showed very good agreement when comparing the extractive and ORS sampling methods.
The design and results of a study to relate human comfort and health to the airliner cabin environment are described. Rationale for studying the airliner cabin environment, the scope of the study, the experimental design, and flight selection are presented. This study was unique in including both in-flight passenger and crew surveys and a variety of measurements of the physical and chemical environment in the cabins of airliners in revenue service. It was found that, even with a very small sample, various physical parameters were statistically related to reported human comfort as measured by the survey instrument. For example, higher levels of carbon dioxide in the cabin during cruising were associated with lower ratings of the overall air quality in the cabin, less satisfaction with the odor in the cabin, and less satisfaction with the freshness of the air in the cabin. This paper focuses on the process for developing the study design and results from the survey. Companion papers discuss the results of the cabin chemical and physical environmental measurements.
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