Roc soars again: Biggest airplane ever built aces 4th test flight

The biggest airplane ever built, Stratolaunch’s Roc carrier aircraft, just aced its fourth test flight. Roc, which will eventually haul hypersonic vehicles into the air, successfully finished its latest flight on Thursday (Feb. 24), a jaunt that came on the heels of another test flight in January. Roc lifted off from the Mojave Air and … Read more