{"airworthiness_class":"Experimental","airworthiness_date":"2014-02-22","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2014-01-13","city":"EAST FALMOUTH","country_code":"US","county_code":"001","cruise_speed_mph":null,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"01402","engine_horsepower":80,"engine_maker":"AEROVEE","engine_model":"2.1","engine_thrust_lb":0,"expiration_date":"2030-01-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"SONEX AIRCRAFT LLC","kit_model":"ONEX","last_action_date":"2023-09-30","maker":"Foster Dudley B","maker_country":null,"maker_raw":"FOSTER DUDLEY B","maker_segment":null,"mfr_mdl_code":"0563283","mode_s_code":"51533061","mode_s_hex":"A6B631","model":"ONEX","n_number":"N531X","name":"FOSTER DUDLEY B","num_engines":1,"other_names":"","plain_english":"N531X is a Foster Dudley B ONEX, a fixed-wing airplane with one motor with a piston engine, built in 2014. It has 1 seat. It is registered to an individual in East Falmouth, Massachusetts. The registration is valid: it was issued on January 13, 2014 and expires on January 31, 2030. It holds an experimental airworthiness certificate for amateur built, dated February 22, 2014.","region":"New England","region_code":"E","registrant_type":"Individual","registrant_type_code":"1","seats":1,"serial_number":"ONX0054","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"MA","status":"Valid registration","status_code":"V","status_short":"Valid","street":"19 JOSHUA LN","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"01139980","url":"https://staging.data.eflight.com/aircraft/N531X","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":2014,"zip":"025365483"}