Pedzisa mutsara unotevera: Basa rokutanga rechikwata pakuumbwa kwaro raiva rokuita mabasa okuongorora-kuongorora nokuda kwevatakuri vendege. Gare gare vakashongedzerwazve neFairey Seals neBlackburn Sharks, pakupedzisira vachigamuchira Fairey Swordfish mumatsutso a1937. Chikamu chacho chakatumirwazve muna November wegore rakatevera kuchikepe chitsva chinotakura ndege. The squadron akavhiyiwa kubva "Ark Royal" kwemakore matatu akatevera, pakutanga pamusoro Anti-ngarava dzepasi pemvura mabasa, asi gare gare sezvo pamusoro kutsvaka uye torpedo-kurwisa ndege. Chikwata ichi chakaenda ne "Ark Royal" kuAtlantic, uye muna April 1940 vakanga vachitsigira mashandiro eAllied munguva yeNorway campaign, uko vakabhomba nhandare yendege yeVaernes. Mushure mokunge
achibviswa muNorway, "Ark Royal" uye squadron yakatamira kuMediterranean muna June. Ndege dzechikwata chechi820 dzakabatanidzwa mukurwisa ngarava dzeFrance paMers-el-Kébir, uye gare gare Hondo yeDakar, pamwe nekurwisa kuCagliari. Vakanga variwo vanoshingaira panguva yeHondo yeCape Spartivento, pamwe nekuvhara makondirakiti kuMalta.