sˌʌm ˈɛɹkɹæft wɜː klˈɪɹd fɔːɹ jˈuːzɪŋ ðˈiːz, sˈʌtʃ ɐz ðə pˈiː tˈuː vˈiː nˈɛptuːn, bˌʌt nˈʌn wɜː jˈuːzd ɐɡˈɛnst ˌɛni sˈʌbmɚɹˌiːnz.
Some aircraft were cleared for using these, such as the P2V Neptune, but none were used against any submarines.