Yes, and they track flights using these too. Like this: https://www.faa.gov/air_traffic/technology/tfdm/efs/media/paper%20strips%20c.png https://www.faa.gov/air

Yes, and they track flights using these too. Like this: https://www.faa.gov/air_traffic/technology/tfdm/efs/media/paper%20strips%20c.png https://www.faa.gov/air_traffic/technology/tfdm/efs/media/pa...