ˌʌndɚ ðə vˈɜːsətˌaɪl ɐfˈoːɹdəbəl ɐdvˈænst tˈɜːbaɪn ˈɛndʒɪnz vˈɑːt pɹˈoʊɡɹæm, ðə jˈuː.ˈɛs ˈɛɹ fˈoːɹs ænd ˈɪndʌstɹi pˈɑːɹtnɚz dɪvˈɛləpt ðɪs kˈɑːnsɛpt ˌʌndɚ ðɪ ɐdˈæptɪv vˈɜːsətˌaɪl ˈɛndʒɪn tɛknˈɑːlədʒi ˈædvɛnt ænd ðə fˈɑːloʊˌɔn ɐdˈæptɪv ˈɛndʒɪn tɛknˈɑːlədʒi dˈɛmənstɹˌeɪɾɚ ˈiːtd ænd ɐdˈæptɪv ˈɛndʒɪn tɹænsˈɪʃən pɹˈoʊɡɹæm ˈiːtp.
Under the Versatile Affordable Advanced Turbine Engines (VAATE) program, the U.S Air Force and industry partners developed this concept under the Adaptive Versatile Engine Technology (ADVENT) and the follow-on Adaptive Engine Technology Demonstrator (AETD) and Adaptive Engine Transition Program (AETP).