tə kˈiːp ˈɛɹkɹæft dɹˈæɡ æt sˈuːpɚkɹˌuːz dˈaʊn, ˌɛsˌɛstˈiː ˈɛndʒɪnz ɹᵻkwˈaɪɚɹ ɐ hˈaɪ spəsˈɪfɪk θɹˈʌst nˈɛt θɹˈʌst slˈæʃ ˈɛɹfloʊ tə kˈiːp ðə kɹˈɔssˈɛkʃənəl ˈɛɹiə ʌvðə pˈaʊɚplənt tʊ ɐ mˈɪnɪməm.
To keep aircraft drag at supercruise down, SST engines require a high specific thrust (net thrust/airflow) to keep the cross-sectional area of the powerplant to a minimum.