{"airworthiness_class":"","airworthiness_date":"","airworthiness_ops":"","category":"drone","cert_issue_date":"2021-09-21","city":"OAK RIDGE","country_code":"US","county_code":"001","cruise_speed_mph":null,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"","engine_horsepower":null,"engine_maker":"","engine_model":"","engine_thrust_lb":null,"expiration_date":"2028-09-30","fractional_owner":0,"is_company":1,"is_electric":1,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-06-10","maker":"Autel Robotics","maker_country":"CN","maker_raw":"AUTEL ROBOTICS","maker_segment":"Inspection and mapping drones","mfr_mdl_code":"061018J","mode_s_code":"51276005","mode_s_hex":"A57C05","model":"EVO II PRO","n_number":"N4521","name":"U S DEPARTMENT OF ENERGY","num_engines":4,"other_names":"","plain_english":"N4521 is an Autel Robotics EVO II PRO, a rotorcraft powered by electric motors (a helicopter or multicopter). It is unmanned. It is registered to U S Department Of Energy, a government body in Oak Ridge, Tennessee. The registration is valid: it was issued on September 21, 2021 and expires on September 30, 2028. No airworthiness certificate is on file, which is normal for drones and for aircraft still being built or tested.","region":"Central","region_code":"3","registrant_type":"Government","registrant_type_code":"5","seats":0,"serial_number":"HV5920322100","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"TN","status":"Valid registration","status_code":"V","status_short":"Valid","street":"C/O OAK RIDGE NATIONAL LABORATORY","street2":"PO BOX 2008  MS-6144","type_aircraft":"Rotorcraft","type_aircraft_code":"6","type_engine":"Electric","type_engine_code":"10","unique_id":"01342827","url":"https://staging.data.eflight.com/aircraft/N4521","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":null,"zip":"378316144"}