{"airworthiness_class":"Experimental","airworthiness_date":"2015-08-18","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2015-08-03","city":"PORT ARANSAS","country_code":"US","county_code":"355","cruise_speed_mph":null,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"55572","engine_horsepower":100,"engine_maker":"ROTAX","engine_model":"912ULS SERIES","engine_thrust_lb":0,"expiration_date":"2028-08-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"AUTOGYRO GMBH","kit_model":"MTO SPORT","last_action_date":"2023-06-03","maker":"William S Welder","maker_country":null,"maker_raw":"WILLIAM S WELDER","maker_segment":null,"mfr_mdl_code":"05634I4","mode_s_code":"50641143","mode_s_hex":"A34263","model":"MTO SPORT","n_number":"N309ST","name":"WELDER WILLIAM SMITH","num_engines":1,"other_names":"","plain_english":"N309ST is a William S Welder MTO SPORT, a rotorcraft with a four-stroke engine (a helicopter or multicopter), built in 2015. It has 2 seats. It is registered to an individual in Port Aransas, Texas. The registration is valid: it was issued on August 3, 2015 and expires on August 31, 2028. It holds an experimental airworthiness certificate for amateur built, dated August 18, 2015.","region":"Southwestern","region_code":"2","registrant_type":"Individual","registrant_type_code":"1","seats":2,"serial_number":"M01267","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"TX","status":"Valid registration","status_code":"V","status_short":"Valid","street":"639 E AVENUE B","street2":"","type_aircraft":"Rotorcraft","type_aircraft_code":"6","type_engine":"Four-cycle piston","type_engine_code":"8","unique_id":"01187380","url":"https://staging.data.eflight.com/aircraft/N309ST","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":2015,"zip":"783735201"}