World’s Largest Airplane Soars Over Mojave Desert In Fifth Successful Test Flight
Built to carry rockets and ultrasonic aircraft three at a time , the large - wingspan aircraft ever built has just completed itsfifth trial run flight , reaching a vast milestone in campaign it into service . The Stratolaunch mail carrier aircraft soared to an altitude of 6,858 meters ( 22,500 ft ) and aviate for almost five hr , testing a newfangled addition to the nub of the aircraft that will be used to attach and launch hypersonic vehicles ....