Aircraft with no markings?

[Zya8187]

Must be like a test chopper or something unless you havea rich neighbor that could go buy his own.

[JasonC]

A helicoper has flown by the front of the house today twice and the first time i thought that it was the Maryland state police. But when it went by the 2ed time i went out side and seen it. It was a Apache with no markings and was a light gray in color. I allways thought that we put the United States of America on them, did they stop doing that? Or is it some test chopper?