>268
>IFF使っても識別できなかったソースは?

->
>269
>The primary means that Americans had of determining if a plane was friendly
>was by Identification Friend or Foe (IFF), but this was not always reliable.

->
>277
>IFFで識別してるのが船なのか飛行機なのかもわからねぇ

・・・読んでいないのでは?w