THOR is a vertical take-off and landing (VTOL) Mini-UAS. It is a low-altitude multi-rotor platform designed for surveillance and reconnaissance missions over land and at sea. Electrically propelled, THOR has a low acoustic signature enabling covert operation in day and night. It flies to a ceiling of up to 2,000 ft. above ground at a range of 10 kilometers carrying payloads up to 3 kg for 75 minutes.