Thunderjet
Thunderjet is a fictional character from the Marvel Comics universe, created by writer-artist John Buscema and introduced in Iron Man #55 (May 1973). Thunderjet is a high-tech, jet-powered suit of armor designed by Tony Stark, also known as Iron Man, to serve as a backup for his primary suit. The suit is equipped with advanced technology, including a built-in computer system, a repulsor beam, and a variety of other weapons and tools. Thunderjet is capable of flight and can reach speeds of up to Mach 3. The suit is also equipped with a self-destruct mechanism, which can be activated in case of an emergency. Thunderjet has been used by Tony Stark on several occasions, including during the "Secret Wars" event, where it played a crucial role in the battle against the Kree. Despite its advanced technology, Thunderjet has been largely overshadowed by Tony Stark's primary suit, and has appeared in relatively few stories since its introduction.