The RAT55, a highly classified Boeing 737-based radar test platform, has transitioned into what officials describe as "the next phase of its career" following its recent support role in NASA's Artemis II lunar mission. The aircraft, considered the world's most secretive commercial aviation derivative, made an unusual public appearance during the space program's operations.
The transition marks a significant expansion of the RAT55's mission scope beyond its traditional radar development and testing roles. Defense analysts suggest this signals growing integration between space operations and advanced radar technologies, potentially enhancing both missile defense capabilities and space domain awareness systems.