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특허 상세정보

Helicopter airspeed indicating system

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G06F-015/20   
미국특허분류(USC) 364/565 ; 364/431 ; 244/1713 ; 73/509
출원번호 US-0096829 (1979-11-23)
우선권정보 GB-0046895 (1978-12-01)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 13  인용 특허 : 4
초록

This invention provides a helicopter airspeed indicating system for providing an indication of a theoretical airspeed of a helicopter in which it is fitted. The airspeed is calculated using measured weight and power values and a known relationship between power, weight and airspeed characteristics of the helicopter, and is particularly useful for providing an indication of helicopter airspeed at the low end of an overall speed range.

대표
청구항

An on board apparatus for estimating the low end airspeed of a helicopter during flight comprising: means for determining the helicopter applied power; means for determining the weight of the helicopter; means for storing predetermined confirmed measurements of the airspeed of the helicopter at various applied powers and weights; means for determining an estimated airspeed using the determined power and weight and the stored measurements, and for outputting a signal; and indicator means coupled to said determining means and responsive to said signal for ...

이 특허를 인용한 특허 피인용횟수: 13

  1. Rozak, James N.; Cycon, James P.. Aircraft health and usage monitoring system with comparative fleet statistics. USP2011077984146.
  2. Kell, Edward T.; Lowe, Anthony J.; Colbert, Sebastian H.. Aircraft integrated support system (ISS). USP2011077983809.
  3. Cox, Isaiah Watas; Edelson, Jonathan Sidney. Aircraft weight estimation method. USP2013098532957.
  4. Favre Helene (Massy FRX) Audren Jean T. (Orsay FRX). Autonomous kinematic measurement system for helicopters. USP1990114970651.
  5. Sarma Garimella Ramakrishna ; Mangalam Sivaramakrishman M.. Broad-range, multi-directional aircraft airspeed measuring system. USP2000086101429.
  6. Astruc, Jo{hacek over (e)}l; Eglin, Paul. Method and a device for processing and displaying aircraft piloting information. USP2009117616130.
  7. Mandle Jacques (Granges les Valence FRX) Goudon Jean-Claude (Chabeuil FRX). Method for determining the air speed of a helicopter, system for carrying on this method and method for calibrating such. USP1989054829441.
  8. Schaefer ; Jr. Carl G. ; McCool Kelly M. ; Haas David J.. Neural network based helicopter low airspeed indicator. USP1999055901272.
  9. Schaefer ; Jr. Carl G. ; McCool Kelly M. ; Haas David J.. Neural network based method for estimating helicopter low airspeed. USP1999035890101.
  10. McCool Kelly ; Haas David. Neural network system for estimation of helicopter gross weight and center of gravity location. USP1999115987397.
  11. Gray,Anthony James. Safety index. USP2006016989769.
  12. Anderson, Kaare Josef; Matheis, Brian Daniel; Hongerholt, Derrick D.; Kunik, William. Synthetic air data output generation. USP2018049932127.
  13. Spoldi, Steven E.. Synthetic estimation of rotorcraft airspeed. USP2014098825233.