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Friday 20 Today and tomorrow are the two annual days in the sun (with any luck) for plane and boat nuts: the 35th annual Chicago Park District Air and Water Show takes place between Fullerton and Oak along the lakefront from noon to 4:30 both days. Here’s what you might see: the Air Force Thunderbirds precision flying team, in which six planes fly 18 inches apart; U.S. Navy Seals dropping out of a helicopter to stage an “assault” on North Avenue Beach; and lots of Air Force equipment, including a Stealth fighter and a B-1 bomber....