{"airworthiness_class":"Experimental","airworthiness_date":"2004-06-04","airworthiness_ops":"Exhibition","category":"conventional","cert_issue_date":"2004-06-02","city":"RAMONA","country_code":"US","county_code":"073","cruise_speed_mph":99,"data_date":"2026-09-25","documents":[],"eng_mfr_mdl":"33501","engine_horsepower":4,"engine_maker":"HILLER","engine_model":"8RJ2B","engine_thrust_lb":0,"expiration_date":"2027-08-31","fractional_owner":0,"is_company":1,"is_electric":0,"is_unmanned_cert":0,"kit_mfr":"","kit_model":"","last_action_date":"2023-03-10","maker":"Hiller","maker_country":null,"maker_raw":"HILLER","maker_segment":null,"mfr_mdl_code":"4360202","mode_s_code":"51052005","mode_s_hex":"A45405","model":"HH-120","n_number":"N3781G","name":"CLASSIC ROTORS MUSEUM","num_engines":1,"other_names":"","plain_english":"N3781G is a Hiller HH-120, a rotorcraft with a piston engine (a helicopter or multicopter), built in 1953. It has 1 seat. It is registered to Classic Rotors Museum, a corporation in Ramona, California. The registration is valid: it was issued on June 2, 2004 and expires on August 31, 2027. It holds an experimental airworthiness certificate for exhibition, dated June 4, 2004.","region":"Western-Pacific","region_code":"4","registrant_type":"Corporation","registrant_type_code":"3","seats":1,"serial_number":"534663","source":"FAA Civil Aviation Registry, Releasable Aircraft Database","state":"CA","status":"Valid registration","status_code":"V","status_short":"Valid","street":"2690 MONTECITO RD","street2":"","type_aircraft":"Rotorcraft","type_aircraft_code":"6","type_engine":"Piston (reciprocating)","type_engine_code":"1","unique_id":"00510164","url":"https://staging.data.eflight.com/aircraft/N3781G","watchlist_group":null,"watchlist_note":null,"weight_class":"","year_mfr":1953,"zip":"920651611"}