Second and third Boeing 747-8 Freighter complete first flight

The second and the third Boeing 747-8 Freighter, RC 522 and RC 521, successfully completed their first flight on March 14th and March 18th respectively. The 747-8 Freighter flight-test program calls for all three airplanes to perform approximately 3,700 hours of testing both on the ground and in the air. The first 747-8 Freighter delivery is planned for the fourth quarter of this year.