The Tornado was originally built as a replacement for Winged Victory, which had been stolen by Kodos. Built by Tails and Nate Morgan and powered by what was left of a Super Emerald, it was flown by Sonic and Tails as part of a mission to Station Square. When Chaos attacked, Sonic and Tails used the plane to track it down. Eventually, they used it to reach the Egg Carrier. When Tails flew himself and Amy Rose back to Station Square, he left the Tornado behind so that Sonic would have a way off himself. Unfortunately, Knuckles ended up flying Sonic to safety when they saw that Big the Cat and Froggy had taken the Tornado. And crashed it. By the time Sonic, Tails, and Knuckles found what was left of the Tornado, Chaos found it and took the Super Emerald. (StH: #80, #83, SSS: #13)