Planes continue moving into museum hangar

The National Museum of the U.S. Air Force moved more research and development aircraft Wednesday into a new $40.8 million expansion set to open to the public next June. The Northrop YF-23, nicknamed the Black Widow II, got a bath on its way to the hangar.

The prototype stealth fighter was one of two that competed to become a frontline Air Force fighter. The Air Force chose the F-22 Raptor. The YF-23 arrived at the museum in 2000.