Stark began creating the Silver Centurion armor as a method of working out ideas and experimenting. The S-circuit, which uses its energy more efficiently, is an example of the breakthrough developed by Stark, using the armor as a model. With the destruction of Circuits Maximus by Obadiah Stane, Stark donned the newest set of armor to battle the foe that stripped him of his business, his friends, and almost his life. The battle with Stane was the first field test of this armor, and resulted in the defeat of Stane and the destruction of Stane International.