Page last updated at 17:37 GMT, Friday, 29 January 2010 Russia has unveiled its new stealth fighter jet, meant to boost the country's ageing arsenal of weaponry and be a rival to the US F-22 Raptor. The Sukhoi T-50, also called the PAK FA, made its maiden flight in Russia's far east. Test pilot Sergei Bogdan said it was "easy and comfortable to pilot". Prime Minister Vladimir Putin said much work