"Remove Before Flight" tags are bright red safety streamers attached to protective covers, pins, and other devices used on aircraft while they're on the ground. These items prevent accidental damage or movement during maintenance or transport but must be removed before the aircraft is cleared for takeoff. The tag acts as a bold visual reminder to ground crews, ensuring nothing critical is left in place that could interfere with flight operations. It's a small but vital part of aviation safety—and a favorite symbol among aviation fans for its iconic, no-nonsense look.