
1) Autobot 2) Fictional ship
Found on
https://www.crosswordclues.com/clue/thunderblast

Thunderblast is the name of several fictional characters from the Transformers universes. ==Transformers: Cybertron (Decepticon)== Thunderblast is a female Transformer, and a member of an ancient race of Decepticons living on the Planet Earth. Thunderblast`s vehicle mode is a speed-boat. She is armed with a quadruple-missile launcher that convert....
Found on
http://en.wikipedia.org/wiki/Thunderblast
No exact match found.