The B-2 Spirit is the United States’ foremost stealth bomber, owing much of its premier and cutting edge technology and supremacy in the radar evasion realm to the four General Electric F118-GE-100 non-afterburning turbofan engines. These advanced engines are engineered to compliment the stealth capabilities of the B-2. The F118-GE-100 turbofan engines were developed from the F110 engines commonly used in the F-16 and F-15 fighter aircraft, but adapted to meet the needs of the stealth program.