>>52871935Garchomps design is based off of the A10 Warthog.
More specifically, the A10 and its shark-mouthed nose art (The A10 is one of the few aircraft remaining which is still allowed to have shark-mouth nose art, for cultural reasons.)
As this picture shows, from a frontal perspective, a Garchomps head bears a startling similarity to the attack jet. Of particular note are the twin jet engines, which mimic Garchomps horns pretty much to a T.
This can be seen in Pokdex descriptions, also. Notably, Garchomps entry in pokemon diamond
>When it folds up its body and extends its wings, it looks like a jet plane.And pearl
>It flies at speeds equal to a jet fighter plane. 