Russia successfully tested its first stealth fighter jet today, offering a boost to the country's aviation sector as well as its military. The Sukhoi T-50 is intended to match the stealth capabilities of the US F-22 Raptor, which it resembles. The dual-engine aircraft took off from Komsomolsk-on-Amur, in Siberia, and flew for 47 minutes. PM Vladimir Putin hailed the flight as a "big step forward" but acknowledged that "a lot remains to be done," the AP reports. (More Russia stories.)