{"airworthiness_class":"Experimental","airworthiness_date":"1980-10-01","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2024-06-21","city":"MADISON","country_code":"US","county_code":"079","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":"2031-06-30","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2024-06-21","maker":"Bolster","maker_country":null,"maker_raw":"BOLSTER","maker_segment":null,"mfr_mdl_code":"7220652","mode_s_code":"51174566","mode_s_hex":"A4F976","model":"PITTS SPECIAL S-1S","n_number":"N42BY","name":"KNUTH MATTHEW","num_engines":1,"other_names":"","plain_english":"N42BY is a Bolster PITTS SPECIAL S-1S, a fixed-wing airplane with one motor with a piston engine. It has 1 seat. It is registered to an individual in Madison, South Dakota. The registration is valid: it was issued on June 21, 2024 and expires on June 30, 2031. It holds an experimental airworthiness certificate for amateur built, dated October 1, 1980.","region":"Great Lakes","region_code":"C","registrant_type":"Individual","registrant_type_code":"1","seats":1,"serial_number":"476B1077","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"SD","status":"Valid registration","status_code":"V","status_short":"Valid","street":"6107 GRANDVIEW DR APT 14","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00851644","url":"https://staging.data.eflight.com/aircraft/N42BY","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":null,"zip":"570427321"}