The study investigated retention rates at which naval flight officers are voluntarily extending beyond their initial obligated tour of duty. Analysis of aptitude and training performance showed that significant differences exist with regard to quality of performance between the extendees or career personnel and the noncareer men, with procurement source having a moderating effect. A multiple regression analysis revealed that the men entering the aviation training program as commissioned officers had a significantly greater multiple correlation with the career/noncareer criterion than those men entering as aviation officer candidates or the naval flight officer group as a whole. (Author).