National Geographic : 1964 Jun
balloons hoist 120-foot drill pipes controlled by winch operators in Link-designed igloos (cutaway, extreme left). Off -duty men relax in oxygen-and helium-filled Link houses (cutaway, left). Navy's PAINTING () NATIONALGEOGRAPHICSOCIETY projected deep-rescue vehicle (above), adapted for civilian use, delivers a heavy pipe slung from a 2,000-pound buoyant tank of gas. Main pipeline crosses a submarine plateau to shore.