ðə vˈɛɹi fˈɜːst dʒˈɛt ˈɛndʒɪnz jˈuːzd sˌɛntɹɪfjˈuːɡəl kəmpɹˈɛsɚz ænd ðeɪ ɑːɹ stˈɪl jˈuːzd ˌɔn smˈɔːl tˈɜːbədʒˌɛts ænd tˈɜːboʊ ʃˈæft ˈɛndʒɪnz.
The very first jet engines used centrifugal compressors and they are still used on small turbojets and turbo shaft engines.