Once a passenger jet, the mysterious plane has been spotted taking to the skies above Dayton, Ohio.

Have you been tracking the exclusive quadjet?

The second Boeing (NYSE: BA) 747-8 Freighter, RC521, landed in Palmdale, Caliornia today, marking the beginning of a planned transition of 747-8 Freighter testing to Southern California. The more than ...

EVERETT, Wash. – The second Boeing 747-8 Intercontinental, RC021, successfully made its first flight today. The airplane completes the two-airplane test fleet for the 747-8 Intercontinental. EVERETT, ...

The second Boeing 747-8 Intercontinental, RC021, successfully made its first flight today. The airplane completes the two-airplane test fleet for the 747-8 Intercontinental. "This is another great ...

Test crews spent 17 hours criss-crossing the U.S. on Boeing’s 747-8 Freighter. The longest flight, the last hurdle in the certification process for the required number of test hours, ended in Everett.

The new aircraft in the Boeing VC-25B Bridge program completed modifications and flight testing and is now being painting red ...