IN this paper an attempt is made to establish certain general fundamentals connected with sub-stratosphere flying. It is not intended to be a detailed engineering analysis. Emphasis is placed on the meteorological, physiological, and psychological aspects of the problem.
It is shown that the safety and comfort of air-transport passengers and crew require the use of a pressure compartment if flights are to be undertaken satisfactorily above the 10,000- to 20,000-ft. level.
