CURRENT AFFAIRS

Detailed explanation-1: -The Su-57 is a fifth-generation multirole fighter aircraft and the first operational stealth aircraft for the Russian armed forces.

Detailed explanation-2: -The U.S, UK and Israel are the only countries to have used stealth aircraft in combat. These deployments include the United States invasion of Panama, the first Gulf War, the Kosovo Conflict, the War in Afghanistan, the War in Iraq and the 2011 military intervention in Libya.

Detailed explanation-3: -The F-117 Nighthawk was the world’s first operational stealth aircraft. Between 1981 and 2008, Lockheed Martin produced 59 operational F-117s and five developmental prototypes, but the aircraft weren’t publicly acknowledged until 1988.

Detailed explanation-4: -It was the first stealth aircraft-i.e., an aircraft designed entirely around the concept of evading detection by radar and other sensors. After a difficult development period, during which several prototypes crashed during testing, the first operational craft was secretly delivered to the Air Force in 1982.

Detailed explanation-5: -The Messerschmitt Me 262 was the first operational jet fighter, manufactured by Germany during World War II and entering service on 19 April 1944 with Erprobungskommando 262 at Lechfeld just south of Augsburg.