Thunderbirds Are Go is the eighth Thunderbirds novel released, and the fourth by Armada Books. Published in December 1966, the paperback novel was written by Angus P. Allan and is an adaptation of the film script by Gerry and Sylvia Anderson.
Excitement, adventure, and danger are GO, as International Rescue are called in to ensure the safety of a revolutionary new space vehicle, the Zero X.
- Thunderbirds Are Go is the only novel in the series to directly adapt an existing story. All other novels, while alluding to other stories, are entirely original adventures.
- It is furthermore the second novel to use photography on the cover, as opposed to illustrations.