ðə ɡˈʌn tˈɜːɹɪts, dɪzˈaɪnd baɪ kˈæptɪn kˈoʊlz ʌvðə ɹˈɔɪəl nˈeɪvi, sˈæt ˌɔn sˈɜːkjʊlɚ tˈɜːnteɪbəlz ðæt wɜː bˈɪlt ˌɔn ɐn ˈaɪɚn ɹˈeɪdɪəl plˈætfɔːɹm wɪð ˈɑːɹmz ðæt ɹˈɛstᵻd ˌɔn bˈɛvəld wˈiːlz ɪn daɪˈæmɪɾɚ.
The gun turrets, designed by Captain Coles of the Royal Navy, sat on circular turntables that were built on an iron radial platform with arms that rested on beveled wheels  in diameter.