Russia's brand-new, state-of-the-art fighter jet has made its second test flight. Officials say the T-50 has so far performed brilliantly. The "progressive front-line aviation complex", as the plane is officially known, is Russia's first attempt to create a complete "stealth" fighter. Its features include an advanced onboard computer which controls many of the plane's systems, giving the pilot more time to focus on the mission. The plane is being developed by Russia's Sukhoi company, with serial production planned to begin in 2015.