Congrats if you found this. You have found the rarest badge for this series. The flight engineer or also know as the back right seat or just called back seat. On the MOD-6 the mental load is a lot on these guys. Controlling both a top mounted gun in a chair that turns with them while linked to the gun via their helmet, they also have to manage systems in the event of a failure. You had to pass a class out of 100, only 20 will pass. The badge about the size of a dollar coin is made with white gold alloy AND the wrench is made with a vary light amount of 24KT gold just to reflect how rare and how hard they are to counterfeit and get.