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This paper addresses the problem of evaluating the acoustic pressure field generated in the oceanic waveguide by a uniformly moving airborne source. The air, water, and seabed media are stationary and stratified. The pressure in the far field is obtained in terms of the normal modes usually utilized in underwater and aerial transmission loss calculation. The expression obtained is shown to be in accordance with specialized results found by other authors and is physically interpreted. The influence of the source movement on propagation loss is considered. [ABSTRACT FROM AUTHOR]