{"airworthiness_class":"Experimental","airworthiness_date":"2009-09-30","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2025-02-18","city":"LAKE HAVASU CITY","country_code":"US","county_code":"015","cruise_speed_mph":null,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"01400","engine_horsepower":80,"engine_maker":"AEROVEE","engine_model":"2180","engine_thrust_lb":0,"expiration_date":"2032-02-29","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"SONEX AIRCRAFT LLC","kit_model":"SONEX","last_action_date":"2025-02-18","maker":"Delius Steven E","maker_country":null,"maker_raw":"DELIUS STEVEN E","maker_segment":null,"mfr_mdl_code":"05628G6","mode_s_code":"50073307","mode_s_hex":"A076C7","model":"SONEX","n_number":"N129SX","name":"ROBBINS WILLIAM T","num_engines":1,"other_names":"STUBBLEFIELD DANIEL","plain_english":"N129SX is a Delius Steven E SONEX, a fixed-wing airplane with one motor with a piston engine, built in 2009. It has 2 seats. It is registered to co-owned owners in Lake Havasu City, Arizona. The registration is valid: it was issued on February 18, 2025 and expires on February 29, 2032. It holds an experimental airworthiness certificate for amateur built, dated September 30, 2009.","region":"Western-Pacific","region_code":"4","registrant_type":"Co-owned","registrant_type_code":"4","seats":2,"serial_number":"475","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"AZ","status":"Valid registration","status_code":"V","status_short":"Valid","street":"1990 MCCULLOCH BLVD N","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"01031435","url":"https://staging.data.eflight.com/aircraft/N129SX","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":2009,"zip":"864035749"}