SkyTran is a patente Personal Rapid Transit system first proposed by inventor Douglas Malewicki in 1990, and under development by UniModal Transport Solutions Inc. The idea proposes to use light-weight, two-passenger vehicles suspended from elevated passive magnetic levitation tracks. Malewicki predicts SkyTran could operate at speeds of up to 100 miles per hour. No prototype of the SkyTran system has been built, though Inductrack, the proposed magnetic levitation system for SkyTran, has been tested by General Atomics with a full scale model.