The purpose of this study was to develop a screening procedure for undergraduate pilot training (UPT). This procedure was based upon the use of ground-based instrument trainers in which UPT candidates, naive to flying, were evaluated in their performance of job sample tasks; i.e., basic instrument flying. Training and testing sessions were conducted in a highly standardized and tightly controlled environment. Student performance was scored using only objective measures of aircraft control and systems management. The job sample approach proved highly successful in predicting student performance in the T-37 phase of UPT. Attrition, due to causes other than a lack of flying skill, was not satisfactorily predicted by this approach. Two-thirds of the document consists of eight appendixes: T-40 program guide excerpts, T-40 instrument procedures excerpts, test forms and scoring excerpts, T-37 phase summary data, forward selection prediction equations for T-37 phase, pass-fail summary data, forward selection prediction equations for pass-fail, and proposed T-40 screening program guide. (Author/BP)