buenos air searchers argentine submarine miss since nov. 15 battle gale-force south atlantic wind sunday navy spokesman hold hope 44 crew members may still alive extreme survival situation ara san juan seven-day supply air report last position accord officials relatives crew members focus possibility submarine may able rise high enough ocean refill oxygen tank point disappearance argentina official weather service order alert intense wind 50 90 kilometers per hour 31 56 mph gusts chubut province location search vessels sail bad weather condition really adverse navy spokesman enrique balbi tell news conference ask reporter chance crew may still alive balbi leave possibility search 11 days remove chance could still extreme survival situation balbi say u.s. navy undersea rescue command send ship chubut port comodoro rivadavia sunday outfit remotely operate mini-sub use rescue vehicle san juan find ship expect reach search zone 430 kilometers 267 miles argentina southern coast monday afternoon sudden violent sound detect underwater near last know position 65-meter-long 213 feet diesel-electric submarine suggest might implode morning nov. 15th report electrical problem order back base oscar vallejos naval veteran father san juan crew member celso vallejos tell local television refuse believe son would return alive hope always high say burly vallejos posture ramrod straight eye hide behind sunglasses black baseball-style cap identify navy war veteran crew family members less sure state total uncertainty maria victoria morales mother luis garcia electrical technician aboard miss cold war-era submarine tell reuters telephone russian plane arrive argentina friday carry search equipment capable reach 6,000 meter 20,000 feet sea surface accord argentine navy international search effort include 30 ship plan man 4,000 personnel 13 countries include brazil chile great britain searchers argentine submarine defy gale force wind 11th day