wˈɜːkɪŋ wɪð nˈeɪvəl ˌɛndʒɪnˈɪɹz, hiː dɪzˈaɪnd ɐn ˈɪnəvˌeɪɾɪv hˈʌl ʌv ɐlˈuːmɪnəm, bˈoʊθ lˈaɪtweɪt ænd stɹˈɔŋ.
Working with naval engineers, he designed an innovative hull of aluminum, both lightweight and strong.