ðə pɹˈoʊɾoʊtˌaɪp, ðə mˈæks hˈɑːlst ˌɛmˈeɪtʃ.tˈuːhˈʌndɹɪd fˈɪfti sˈuːpɚ bɹˈaʊsɚd, wʌz pˈaʊɚd baɪ tˈuː pɹˈæt ænd wˈɪtni wˈɑːsp ɹˈeɪdɪəl ˈɛndʒɪnz ænd fˈɜːst flˈuː ˌɔn twˈɛnti mˈeɪ nˈaɪntiːnhˈʌndɹɪd fˈɪfti nˈaɪn.
The prototype, the Max Holste MH.250 Super Broussard, was powered by two Pratt & Whitney Wasp radial engines and first flew on 20 May 1959.