Not a modeling question. I have noticed that there is a grey square in their signature with it looks like a propeller in it. What is it? Members like shermanfreak, m1abrams rules and others have them.
It’s a tank tread crusing the airplane propellor. They have some sort of goal of having more posts than the aircraft forum.
ShermanFirefly: Here’s the link to that badge if you want ot use it.