The Training Analysis Digest is a compilation of training improvement studies and projects which have contributed to better instruction and the refinement of course content. It provides a system for reporting the efforts of individual training centers at the Chanute, Keesler, Lackland, Lowry, and Sheppard Air Force Bases in improving enlisted men and officer courses and in evaluating course graduates. Basic training, medical services, equipment operation, weapons systems, communications, electronics maintenance and repair, procurement, instructional program planning, and Project 100,000 for low ability personnel are among the activities and subject areas represented. Report summaries, with applications of findings and conclusions, are given for 16 completed and seven incomplete projects. Three completed and six incomplete category test projects are also described, along with 70 special studies and projects (37 incomplete) and 140 changes to ATC (Air Training Command) Type 3 technical training courses. Course members and titles, specific changes, and reasons are indicated for items in this last category. Also included are statistical summaries of course changes, activations, and discontinuations. (author/ly)