{"airworthiness_class":"Experimental","airworthiness_date":"2024-10-16","airworthiness_ops":"Exhibition","category":"conventional","cert_issue_date":"2025-09-02","city":"KALISPELL","country_code":"US","county_code":"029","cruise_speed_mph":112,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"54179","engine_horsepower":420,"engine_maker":"ROLLS-ROYC","engine_model":"250-C20C","engine_thrust_lb":0,"expiration_date":"2032-09-30","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2025-09-02","maker":"Bell","maker_country":null,"maker_raw":"BELL","maker_segment":null,"mfr_mdl_code":"1181579","mode_s_code":"51735714","mode_s_hex":"A7BBCC","model":"OH-58A","n_number":"N598GY","name":"AERIAL DEFENSE HOLDINGS LLC","num_engines":1,"other_names":"","plain_english":"N598GY is a Bell OH-58A, a rotorcraft with turboshaft engines (a helicopter or multicopter), built in 1970. It has 4 seats. It is registered to Aerial Defense Holdings LLC, an LLC in Kalispell, Montana. The registration is valid: it was issued on September 2, 2025 and expires on September 30, 2032. It holds an experimental airworthiness certificate for exhibition, dated October 16, 2024.","region":"Northwest Mountain","region_code":"S","registrant_type":"LLC","registrant_type_code":"7","seats":4,"serial_number":"70-15598","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"MT","status":"Valid registration","status_code":"V","status_short":"Valid","street":"1001 S MAIN ST STE 49","street2":"","type_aircraft":"Rotorcraft","type_aircraft_code":"6","type_engine":"Turboshaft","type_engine_code":"3","unique_id":"01341856","url":"https://staging.data.eflight.com/aircraft/N598GY","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1970,"zip":"599015635"}