Ƙirƙirar wani nau'i mai mahimmanci na wannan jumla GEC Marconi ya gina wani shafin a Waterlooville don tsarin tsarin karkashin ruwa a farkon shekarun 1980.
Tabbas, mafi mahimmancin jumlar ita ce "GEC Marconi ya gina wani wuri a Waterlooville don Tsarin Ruwa na Ruwa a farkon shekarun 1980, don torpedo anti submarine Stingray. "