Army researchers developed a system of procedures designed to enable training personnel to assess the utility of an existing flight training device for new training purposes. Such adaptations became a salient feature of military training due to the continuous modification of operational equipment. Using a candidate device for rotary wing training, they produced a system of procedures, called the Task Commonality Analysis (TCA), which allowed training personnel to: 1) identify task elements associated with criterion performance in the operational and training equipment; 2) compare the two sets of tasks; 3) estimate the extent to which task commonality is required for transferable training; and 4) specify the synthetic training program most likely to result in maximum positive transfer of training from device to operational equipment. Information derived from the TCA was used to predict transfer of training. Results indicated that the TCA provided an effective basis for assessing the potential value of a training device; they also showed the particular training device employed in this study to be of little use. (Author/PB)