Selected double letter designation are linked but with parentheses ( ), when their primary letter is of that series (not modified mission or status prefix modifiers), there is non non pre-fixed aircraft, or if there several multiple mission/status versions. If aircraft was originally designated in an earlier system it is marked with an asterisk * (either renamed, or, all or part of designation adopted into new system after '62). Strikethrough is for designations which were changed or canceled (e.g.
Selected double letter designations are linked by parentheses ( ) when their primary letter belongs to that series (not modified mission or status prefix modifiers), there is non-prefixed aircraft, or if multiple versions exist with different missions/status. If an aircraft was originally designated in an earlier system it is marked with an asterisk * (either renamed, or, all or part of the designation adopted into a new system after '62). Strikethrough indicates designations that were changed or canceled (e.g.).