High Altitude Research Corporation (HARC) : Named the Liberator, HARC’s X Prize entry is based on proven technology, Space America, Inc.’s, Block I Engine heritage. The launch vehicle uses 2 LOX-Kerosene regenerativly cooled engines that are pressure-fed and lightweight. There are no rotating parts or expensive turbo-pumps. The Liberator is launched from an ocean going vessel and reaches an altitude of approximately 70 miles. Launching from sea has many advantages such as longer launch windows, lower range costs and smoother FAA/AST licensing procedures. It also reduces the risk to population centers to nearly zero.

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