The Solar Impulse completed its coast-to-coast U.S. tour on Saturday when it landed at New York John F. Kennedy International Airport. The electrically powered aircraft flew the 267-mile final leg from Washington’s Dulles International Airport in little more than 18 hours. The tour, which kicked off at the beginning of May, represents the last flights for the aircraft. It will be replaced by a more capable version that will attempt a global circumnavigation in 2015.