Aviation glossary & flight tracking terminology - A useful guide to the terms and phrases of the aviation industry | Flightradar24
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![Aviation glossary & flight tracking terminology - A useful guide to the terms and phrases of the aviation industry | Flightradar24 Aviation glossary & flight tracking terminology - A useful guide to the terms and phrases of the aviation industry | Flightradar24](https://images.flightradar24.com/opengraph/fr24_logo_twitter.png)
Aviation glossary & flight tracking terminology - A useful guide to the terms and phrases of the aviation industry | Flightradar24
Aviation glossary & flight tracking terminology - A useful guide to the terms and phrases of the aviation industry | Flightradar24
![What does the red line mean? I thought it was low altitude but this one seemed to be flying normally : r/flightradar24 What does the red line mean? I thought it was low altitude but this one seemed to be flying normally : r/flightradar24](https://preview.redd.it/what-does-the-red-line-mean-i-thought-it-was-low-altitude-v0-zkvtfblv6w981.jpg?auto=webp&s=4ba125c795ed7778f5d5c84c89cbc1e22b38ba7b)
What does the red line mean? I thought it was low altitude but this one seemed to be flying normally : r/flightradar24
![Flightradar24 on Twitter: "NASA's high altitude research WB-57 active today above the Gulf of Mexico. https://t.co/aj2d4yDSPH https://t.co/Gp41OZvGbP" / Twitter Flightradar24 on Twitter: "NASA's high altitude research WB-57 active today above the Gulf of Mexico. https://t.co/aj2d4yDSPH https://t.co/Gp41OZvGbP" / Twitter](https://pbs.twimg.com/media/Dkfw_SxX4AEJLca.jpg)
Flightradar24 on Twitter: "NASA's high altitude research WB-57 active today above the Gulf of Mexico. https://t.co/aj2d4yDSPH https://t.co/Gp41OZvGbP" / Twitter
![Flightradar24 on Twitter: "Granular calibrated altitude data for #PK8303 is now available at https://t.co/2LODyYPjrJ https://t.co/Lh3T8r2BNY" / Twitter Flightradar24 on Twitter: "Granular calibrated altitude data for #PK8303 is now available at https://t.co/2LODyYPjrJ https://t.co/Lh3T8r2BNY" / Twitter](https://pbs.twimg.com/media/EYnrixUWsAIbL6c.png:large)