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A study was conducted to explore the utility and recognition of lines and linear patterns on electronic displays depicting aeronautical charting information, such as electronic charts and moving map displays. The goal of this research is to support the development of more standardized and consistent lines and linear patterns for these displays. Data were collected from 273 professional and private pilots. First pilots sorted the names of 65 types of lines and linear patterns in terms of utility of the item. Next they tried to identify nine test linear patterns shown in isolation. Results of the sorting task indicated that the most broadly useful items are controlled and special use airspace. Pilots had difficulty identifying the test patterns, but some patterns were better recognized than others. Results for both tasks varied based on pilot background, such as whether the pilots were qualified for instrument operations or visual operations only.