"Research problems are presented under the following twelve categories: (I) vehicle performance, (II) vehicle structures, (IIl) vehicle power plants, (IV) fire hazards, (V) environment, (VI) stability and control, (VII) air traffic control and communication, (VIII) collision avoidance, (IX) instrumentation, (X) medical and human factors, (XI) crashworthiness, and (XII) community relations. Specific recommendations of research studies needed in each of the categories are given first. In appendix A the research problem areas are reviewed and discussed."--P. [1].