nɔːɹθˈʌmbɚlənd ˈoʊnli mˌeɪd ˌʌndɚ sˈeɪl,  mˈeɪnli bɪkˈʌz ðə ʃˈɪps pɹəpˈɛlɚ kʊd ˈoʊnli biː dɪskənˈɛktᵻd ænd nˌɑːt hˈɔɪstᵻd ˌʌp ˌɪntʊ ðə stˈɜːn ʌvðə ʃˈɪp tə ɹᵻdˈuːs dɹˈæɡ, ðə wˈɜːst spˈiːd ʌv ˌɛni ˈaɪɚŋklæd ʌv hɜːɹ ˈiəɹə.
Northumberland only made  under sail,  mainly because the ship's propeller could only be disconnected and not hoisted up into the stern of the ship to reduce drag, the worst speed of any ironclad of her era.