Solar Impulse, the first aircraft capable of flying day and night powered exclusively by solar energy, will be one stop closer to St. Louis after it finishes its second U.S. leg from Phoenix Sky Harbor to Dallas- Fort Worth International Airport. The arrival at DFW is scheduled sometime after midnight, May 23. It left Phoenix before sunrise this morning, May 22.

Lambert-St. Louis International Airport will be the next destination for the “Solar Impulse Across America” flight, which will also make stops at Washington DC-Dulles and New York’s JFK airports.

The public is being offered a chance to view the plane at each of the five U.S. airports on its Across America flight plan.  Solar Impulse is a prototype carbon fiber airplane with a wingspan of a jumbo jet (208ft) and the weight of a small car (3,500 lbs.). The aircraft is powered by 12,000 solar cells built into its wings which provide power to four 10hp electric motors. Solar cells recharge the aircraft’s lithium batteries during the day flight which allows the plane to continue flying at night.

Fans and supporters of the world’s most advanced solar-powered airplane can sign up at www.solarimpulse.com (Join Us link) for the latest news and events including specific viewing opportunities in St. Louis when it arrives. The arrival date in St. Louis has not been set yet. The aircraft could arrive at Lambert within the next week or two based on the weather and other flight operations.