World's First Nuclear-powered Merchant Ship Mrs. Eisenhower launches the world's first nuclear-powered merchant vessel, N. S. Savannah. When fitted out, the pioneering craft will cruise the world's sea-lanes to dramatize President Eisenhower's 'atoms-for-peace' program. Scenes of ship with scaffolding (?) around it. Large and apparently interested crowds watch Mrs. Mamie Eisenhower christen ship. Ship moves into water.