{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9789953","patent":{"patent_number":"US-9789953","title":"Flight control system and method for a rotary wing aircraft, enabling it to maintain either track or heading depending on its forward speed","assignee":null,"inventors":[],"filing_date":"2015-06-25T00:00:00.000Z","publication_date":"2017-10-17T00:00:00.000Z","cpc_codes":["G05D"],"num_claims":18,"abstract":"A flight control method and system for a rotary wing aircraft. When the longitudinal speed UX of the aircraft is greater than a first threshold speed Vthresh1, a first mode of operation of the method enables flight to be performed while maintaining track relative to the ground, the flight setpoints of an autopilot being a ground course angle TKsol, a forward speed Va, a flight path angle P, and a heading Ψ. When the longitudinal speed UX is less than a second threshold speed Vthresh2, a second mode of operation enables flight to be performed while maintaining heading, the flight setpoints being the longitudinal speed UX, a lateral speed VY, a vertical speed WZ, and the heading Ψ."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Flight control system and method for a rotary wing aircraft, enabling it to maintain either track or heading depending on its forward speed","description":"A flight control method and system for a rotary wing aircraft. When the longitudinal speed UX of the aircraft is greater than a first threshold speed Vthresh1, a first mode of operation of the method ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9789953","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-9789953","citation_suggestion":"Patentable. \"Flight control system and method for a rotary wing aircraft, enabling it to maintain either track or heading depending on its forward speed\" (US-9789953). https://patentable.app/patents/US-9789953","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9789953","json":"https://patentable.app/api/llm-context/US-9789953","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:17:26.629Z"}