Russia’s “partially operational” fifth-generation stealth aircraft, the Su-57 Felon, has undergone significant upgrades and is being revitalized as a key component of Moscow’s air defense. ‘Catastrophic Fire’ On US Navy’s 80,000-Ton Aircraft Carrier: When US Nearly Lost Its 1st Supercarrier, Killing 134 Sailors In 1967 On the occasion of the 85th anniversary of the Sukhoi … Continue reading Russia ‘Revamps’ Su-57s For Networked Air Defense; UAC Expands Stealth Fighters’ Functionality For Special Ops