ɪt pɹədˈuːst ɐ tˈoʊɾəl ʌv dˈʊɹɹɪŋ ðə ʃˈɪps sˈiː tɹˈaɪəlz ˌɔn fˈɪftiːn sɛptˈɛmbɚ wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɪksti ˈeɪt ænd nɔːɹθˈʌmbɚlənd hæd ɐ mˈæksɪməm spˈiːd ʌv .
It produced a total of  during the ship's sea trials on 15 September 1868 and Northumberland had a maximum speed of .