{"airworthiness_class":"Experimental","airworthiness_date":"1981-06-12","airworthiness_ops":"Amateur built","category":"conventional","cert_issue_date":"2002-04-24","city":"USYSSES","country_code":"US","county_code":"067","cruise_speed_mph":85,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"27011","engine_horsepower":135,"engine_maker":"FRANKLIN","engine_model":"4A235 SERIES","engine_thrust_lb":0,"expiration_date":"2030-01-31","fractional_owner":0,"is_company":0,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-09-30","maker":"Robertson","maker_country":null,"maker_raw":"ROBERTSON","maker_segment":null,"mfr_mdl_code":"0562021","mode_s_code":"51175151","mode_s_hex":"A4FA69","model":"R1U1","n_number":"N42MR","name":"NEIDERT MELVIN E","num_engines":1,"other_names":"NEIDERT DARLA D","plain_english":"N42MR is a Robertson R1U1, a fixed-wing airplane with one motor with a piston engine, built in 1971. It has 2 seats. It is registered to co-owned owners in Usysses, Kansas. The registration is valid: it was issued on April 24, 2002 and expires on January 31, 2030. It holds an experimental airworthiness certificate for amateur built, dated June 12, 1981.","region":"Central","region_code":"3","registrant_type":"Co-owned","registrant_type_code":"4","seats":2,"serial_number":"529-42-2453","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"KS","status":"Valid registration","status_code":"V","status_short":"Valid","street":"3850 W ROAD 8","street2":"","type_aircraft":"Fixed-wing, single engine","type_aircraft_code":"4","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00671664","url":"https://staging.data.eflight.com/aircraft/N42MR","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1971,"zip":"67880"}