As a consequence of a validation study based on over 200 skilled technicians employed in engine manufacturing, seven aptitude tests were administered to 50 applicants in June 1982. This report presents correlations between test scores and three criteria (math grades, job performance ratings, and a composite) for the 26 people who entered the program. Math grades and the composite were well predicted by the aptitude tests, particularly the spatial ability, figural reasoning, and numerical reasoning tests. (Author/PN)