Air Superiority Authority — 2 museum-grade prints that set the mood. The F-15 Eagle holds a perfect air-to-air combat record in Israeli and USAF service — more than one hundred kills with zero losses in aerial combat, a statistic that made the Eagle the benchmark every rival fighter was measured against during the late Cold War. The NOT A POUND FOR AIR-TO-GROUND design philosophy, quoted on the plate, reflected a USAF conviction that dedicated air-superiority machines would deter Soviet numerical advantage. The F-22 Raptor became the world's first operational fifth-generation fighter when the 27th Fighter Squadron at Langley AFB declared initial operational capability in December 2005. The ATF programme's combination of supercruise, thrust vectoring, and low observability set performance benchmarks that rival air forces still chase in PAK FA and J-20 programmes.