The flying aircraft carrier is larger than any warship in use today and heavier than a supertanker: China’s Luanniao is intended to shape future warfare — from space . Yet experts describe the superweapon as high-tech theater with a political message. China is planning an integrated air- and space-defense system known as Nantianmen ("Heavenly Gate"). Its centerpiece is the flying carrier Luanniao, measuring 242 meters (794 feet) in length, 684 meters in wingspan and reportedly weighing up to