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The goal of our initial study was to assess the usability of the prototype OCU and establish associated training issues. Seven participants completed self-paced training, guided by a training manual produced by ARI. Training was divided into three modules: (1) introduction and autonomous control, (2) manual control, and (3) creating and editing autonomous missions. Primary focus was on how to use the OCU to fly the MAV. Modules did not include elements such as fueling, setup, or tactics. A facilitator was present at all times to observe user interaction with the system and to manage the software. Data captured included time to complete each training module and related practical exercises, user feedback on questionnaires, and a written test on training content. Participants had either graduate-level experience in human factors psychology, prior military experience, or both. They were, therefore, able to provide valuable insights while they learned to operate the simulated MAV.