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Solar Impulse-Two was not the only solar-powered aircraft at New York's JFK Airport this last weekend. The ‘No fuel’ Solar Impulse was joined by another ‘clean energy’ airplane that uses a combination of solar, electric and wind-power, which landed at New York’s John F. Kennedy Airport after a 200-mile flight. The Luminati Aerospace Substrata is a 400-pound solar electric aircraft with a 45-foot wingspan. The Substrata employs a blend of solar power, batteries, and what the company calls “wind-harvesting technologies.” The company says the Substrata extracts energy from any wind gradient, which allows the craft to be powered by