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The "Tails" row can be tapped to view all the tail numbers of that aircraft type that have been entered.
Each tail number can be viewed for the same flights, hours, and date summary information above.
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To add a new tail number to a specific aircraft type, tap the "+" icon at the top right of the appropriate type list and fill in the appropriate information.
To change the aircraft type associated with a specific tail number, go to the "Aircraft Info" page for that aircraft (seen above). Tap the "type" row at the bottom of the "Aircraft Info" screen. Choose the appropriate new type and save.