Retros

In the Thunderbirds series, various aircraft are said to be fitted with Retros, i.e. jet engines providing reverse thrust whenever the situation requires.

Retros in Use

Seen in The Cham-Cham, Thunderbird 2 fires its retros to halt the Cable Car that has been cut loose by Olsen

Main article: Cable Car

Trivia

As of 2016, not even a single aircraft has ever been built with an engine of that sort.