{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9725164","patent":{"patent_number":"US-9725164","title":"Method for controlling rotorcraft airfoil to minimize auxiliary rotor noise and enhance rotorcraft performance","assignee":null,"inventors":[],"filing_date":"2014-12-09T00:00:00.000Z","publication_date":"2017-08-08T00:00:00.000Z","cpc_codes":["G05D"],"num_claims":12,"abstract":"A rotorcraft extends longitudinally along a first anteroposterior plane separating a first side from a second side of the rotorcraft. The rotorcraft includes at least one main rotor, an auxiliary rotor, and at least one steerable airfoil. The rotorcraft further includes a processor unit connected to a first measurement system configured to measure a current value of a speed parameter (V) of the rotorcraft and to a second measurement system configured to measure a current value of a power parameter (W) of a power plant of the rotorcraft. The processor unit is configured to adjust the deflection angle of the airfoil as a function of the current speed and power parameter values (V, W) to cause the auxiliary rotor to move towards at least one predetermined operating point which optimizes performance of the rotorcraft and minimizes noise generated by the auxiliary rotor."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for controlling rotorcraft airfoil to minimize auxiliary rotor noise and enhance rotorcraft performance","description":"A rotorcraft extends longitudinally along a first anteroposterior plane separating a first side from a second side of the rotorcraft. The rotorcraft includes at least one main rotor, an auxiliary roto","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9725164","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9725164","citation_suggestion":"Patentable. \"Method for controlling rotorcraft airfoil to minimize auxiliary rotor noise and enhance rotorcraft performance\" (US-9725164). https://patentable.app/patents/US-9725164","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9725164","json":"https://patentable.app/api/llm-context/US-9725164","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:40:22.326Z"}