dʒˈɛnɚɹəl ᵻlˈɛktɹɪk dɪvˈɛləpt ɐ vˈɛɹɪəbəl sˈaɪkəl ˈɛndʒɪn, nˈoʊn æz ðə dʒˌiːˈiː θˈɜːɾi sˈɛvən ɔːɹ dʒˈɛnɚɹəl ᵻlˈɛktɹɪk wˌaɪˈɛf wˈʌnhˈʌndɹɪd twˈɛnti, fɚðə wˌaɪˈɛf twˈɛnti tˈuː slˈæʃ wˌaɪˈɛf twˈɛnti θɹˈiː fˈaɪɾɚɹ ˈɛɹkɹæft kˌɑːmpətˈɪʃən, ɪnðə lˈeɪt nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi z.
General Electric developed a variable cycle Engine, known as the GE37 or General Electric YF120, for the YF-22/YF-23 fighter aircraft competition, in the late 1980s.