ðə ɡˈʌnz wɜːɹ ˈeɪbəl tʊ ˈɛlɪvˌeɪt ˌʌp tə sˈɛvənti fˈaɪv dᵻɡɹˈiːz tʊ ɪŋkɹˈiːs ðɛɹ ɐbˈɪləɾi ɐɡˈɛnst ˈɛɹkɹæft, bˌʌt ðɛɹ slˈoʊ ɹˈeɪt ʌv fˈaɪɚ, slˈoʊ tɹɐvˈɜːsɪŋ spˈiːd, ænd ðə lˈæk ʌv ˌɛni sˈɔːɹt ʌv hˈaɪˈæŋɡəl fˈaɪɚkəntɹˈoʊl sˈɪstəm mˈɛnt ðæt ðeɪ wɜː vˈɜːtʃuːəli jˈuːsləs æz ˈæntaɪˈɛɹkɹæft ɡˈʌnz.
The guns were able to elevate up to 75° to increase their ability against aircraft, but their slow rate of fire, slow traversing speed, and the lack of any sort of high-angle fire-control system meant that they were virtually useless as anti-aircraft guns.