In 1957 and 1958, the Air Force Cambridge Research Laboratories (AFCRL) developed techniques for the in-flight deployment of several 50-lb instrumentation canisters along a 3500-ft balloon-borne train. This report describes an extension of these techniques to position much heavier instruments in a similar but more precise manner. (Author).

The annotated bibliography has evolved from an informal compilation prepared in response to many requests from military and civilian researchers who were planning balloon-borne experiments and searching for data or detailed information concerning some specific aspects of modern scientific ballooning operations. The bibliography consists of three parts: a subject index, an author index, and the bibliography with annotations.