<prompt> Pedzisa mutsara unotevera: Huckins akakunda chibvumirano chake chokugadzira muna 1941, apo Navy yakanga yakagadzirira kubvisa purogiramu yePT, uye yakabvumira kushandiswa kwequadraconic hull muPT boat construction. Vakapawo mvumo kuElco, Higgins nePhiladelphia Navy Yard kuti vashandise chigadziko chavo chakaputirwa, icho chakawedzera simba regumbo. Hwerengedzo yezvikepe 18 zvemamita 24 nokuda kwezvikwata 14 ne26 zvakapiwa basa mukuvamba kwa1943. Vakagoverwa kunzvimbo dzakananga dzomunzvimbo dzomunharaunda  <response>: Panama Canal, Miami, Florida, Hawaiian Sea Frontier paPearl Harbor, muCentral Pacific, uye nzvimbo yokurovedza muMelville, Rhode Island. 