These safety accessories, often attached to small, removable components of aircraft such as covers, pins, or flags, serve as a critical reminder to ground crew to detach these elements before flight. They are typically brightly colored, usually red, and feature the stark warning text embroidered onto the fabric. A common example is a fabric streamer attached to a pitot tube cover, preventing inaccurate airspeed readings during takeoff.
Their function is paramount for flight safety, preventing potential hazards and ensuring proper aircraft operation. Originating in the aviation industry, these warning devices have become increasingly popular in broader contexts, appearing on everyday items like keychains, lanyards, and luggage tags. This adaptation reflects an appreciation for the functional aesthetic and a connection to aviation history.