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DynalifterAnother concept is the hybrid airship. These ships get a large portion of their lift from their wings and hull, so they can't be called airships. But they do solve typical airship problems involving takeoff, landing and ground operations.
The Ohio Airship's Dynalifter was subcontracted to defense contractors Conceptual Research Corporation, Analytical Methods and Composite Engineering. The companies have developed models from a 120-foot-long prototype (left) to a 990-foot freighter.
One of Howard Hughes' last projects was to work on the development of the cargo-carrying vessel called the Megalifter hybrid. These hybrid freighters could be a boon to the environment by taking thousands of trucks off the highway.