The Sukhoi Su-57 is a twin-engine stealth multirole fighter aircraft developed by Sukhoi. It is the product of the PAK FA programme, which was initiated in 1999 as a more modern and affordable alternative to the MFI.
Sukhoi Su-57
Su-57 prototype at the MAKS-2011 Air Show
Su-57 prototype climbing after takeoff, 2011
Sukhoi Su-57 in flight with landing gear deployed, 2010
Stealth aircraft are designed to avoid detection using a variety of technologies that reduce reflection/emission of radar, infrared, visible light, radio frequency (RF) spectrum, and audio, all collectively known as stealth technology. The F-117 Nighthawk was the first operational aircraft explicitly designed around stealth technology. Other examples of stealth aircraft include the B-2 Spirit, the B-21 Raider, the F-22 Raptor, the F-35 Lightning II, the Chengdu J-20, and the Sukhoi Su-57.
F-117 Nighthawk, the first operational aircraft explicitly designed around stealth technology.
Vehicles like this RAH-66 proved challenging to design stealth capabilities for.
B-2 Spirit stealth bomber of the U.S. Air Force
In a 1994 live fire exercise near Point Mugu, California, a U.S. Air Force B-2 Spirit dropped forty-seven 500 lb (230 kg) class Mark 82 bombs, which represents about half of a B-2's total ordnance payload in Block 30 configuration