Well, a belated Iron Monday, at least! Sorry for not posting one last week, but things can get hectic in real life. So this week I decided to go with the first Iron Man armor to feature the red and gold color scheme.
First appearing in Tales of Suspense #48, this armor was created after Tony nearly died after his first encounter with Mr. Doll, a supervillain who could create voodoo dolls out of clay. His attack on Iron Man caused the golden avenger to fall into the ocean while in excruciating pain and he barely lived to fight another day. In response, Tony decided to ditch the Mark I in favor of a newer and better armor.
So how light was the new armor? Well, the chest piece is described as being "wafer-thin", which I'm guessing is pretty damn thin. Similarly, the helmet was thinner and lighter (Tony claiming that he could barely even feel it), and the jets located in the boots were only an inch, much smaller than the ones found in the first two armors. The face plate of the helmet was also designed to allow more of Stark's facial expressions show through, which he believed would have a psychological effect on his enemies. The reduction in weight allowed allowed Stark to add more equipment to the new suit, such as a radio with an antenna attached to the left shoulder. That's actually one of my favorite things about the armor because it gives it even more of a sci-fi feel.
Pictures from Marvel Database.