Keywords: Yf-23 1.jpg Black Widow II one of two Northrop/McDonnell Douglas YF-23 prototypes built for the United States Air Force http //www nadepni navy mil/s3/mjphotos htm United States Navy http //www nadepni navy mil/s3/graphics/other/yf-23_1 jpg specific link United States Navy PD-USGov-Military-Navy Northrop YF-23 |