U.S. pilots and aircrews will be safer flying into contested airspace thanks to training provided by a 142-ton threat simulator system that shows them how radars built to guide hostile surface-to-air missiles (SAMs) interact with warning systems on their aircraft. The Advanced Radar Threat System Variant 1 (ARTS-V1) will be used on training ranges to simulate how defensive systems on fifth-generation aircraft engage with a variety of modern target engagement radar systems used by other nations. Gaining experience with the radars and practicing responses to the threats are part of training that helps aircrews improve survivability and increase combat effectiveness.