hˌævɪŋ pɹˈuːvd ðə kˈɑːnsɛpt, ðə pɹˈoʊɾoʊtˌaɪp dɪvˈɛləpmənt wʌz ˈʌltᵻmətli ɐbˈændənd ɪn nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi tˈuː æz kˈaʊstoʊz ɡɹˈuːp tˈɜːnd ðɛɹ ɐtˈɛnʃən tʊ ɐ lˈɑːɹdʒɚ vˈɛsəl, ðɪ ˈælsɪˌoʊn.
Having proved the concept, the prototype development was ultimately abandoned in 1982 as Cousteau's group turned their attention to a larger vessel, the Alcyone.