[특허]Landing aid

[미국특허] Landing aid 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64C-013/16
출원번호	US-0659358 (1984-10-10)
우선권정보	GB-0027731 (1983-10-17)
발명자 / 주소	Trampnau Ulrich (P.O. Box 167 21211 Jeddah SAX)
인용정보	피인용 횟수 : 25 인용 특허 : 5

초록 ▼

A warning device, for a helicopter with a tail rotor and a mechanical protection device therefor, for giving during emergency power-loss landings a flare signal to the pilot to initiate flare followed by a tail/ground contact warning signal when the helicopter tail approaches too closely the ground. The warning device comprises in one embodiment a height-finder with two switchable transmitting/receiving antennas mounted at the helicopter tail to produce respectively, when switched into use, a height-finding beam backwards and obliquely downwards or forwards and obliquely downwards. Height signals obtained initially using antenna 40 are processed by computing means and initiate at a predetermined initial flare altitude a flare warning signal whereafter height signals from antenna 26 are used to determine the sink rate of the tail and in dependence upon this sink rate and the instantaneous height, a warning signal is initiated if this corresponds to a predetermined relative relationship. The higher the sink rate, the greater is the height at which the tail/ground contact warning signal is initiated and vice versa. In a second embodiment, the height-finder uses a single beam the main axis of which extends backwards and obliquely downwards but of which the lobe pattern is broad enough such that vertical height measurement can be made with the helicopter in both the flare and pre-flare situation.

대표청구항 ▼

A landing aid, for a helicopter with a tail rotor, for assisting a pilot to carry out a simulated or real auto-rotation landing, said landing aid comprising means for giving a height-measurement by transmitting and receiving high frequency electromagnetic wave beams, positioned at a tail of a helicopter, said high frequency electromagnetic wave beam having an axis which is directed backwardly and obliquely downward from the tail of the helicopter, means for calculating the tail height responsive to a receipt of the reflected electromagnetic wave signals; computing means for computing the tail sink rate responsive to at least one of said height measurements or reflected electromagnetic wave signal, means for providing a flare signal to tell a pilot when to start a landing flare, and means for providing a warning signal to tell a pilot when to stop the landing flare responsive to the tail sink rate relative to its instantaneous height and a corresponding value indicating a danger of a tail/ground.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

Hadari Gideon (Ramat Hasharon ILX), Excessive descent-rate warning system particularly useful for helicopters.
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Barnum Ronald E. (Trumbull CT) Tefft Franklin A. (Killingworth CT) Cotton Louis S. (Monroe CT), Helicopter warning system.
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Barnum Ronald E. (Trumbull CT) Tefft Franklin A. (Killingworth CT) Cotton Louis S. (Monroe CT), Helicopter warning system.
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Watson George C. (Salisbury GB2), Pulse radar altimeters.
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Trampnau Ulrich (Ungererstrasse 19 8000 Munich 40 DEX), Warning device for helicopters.
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이 특허를 인용한 특허 (25) 인용/피인용 타임라인 분석

Griffith, Gregory M., Aircraft collision avoidance system.
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Griffith, Gregory M., Aircraft collision avoidance system.
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Griffith, Gregory M., Aircraft collision avoidance system.
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Holt, Keone J., Aircraft radar altimeter structure.
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DeWitt, Wendi M.; Eggold, David P.; Evans, Monte R.; Sankrithi, Mithra M. K. V.; Wells, Stephen L., Aircraft tailstrike avoidance system.
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Wendi M. DeWitt ; David P. Eggold ; Monte R. Evans ; Mithra M. K. V. Sankrithi ; Stephen L. Wells, Aircraft tailstrike avoidance system.
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Alvarez, Jorge A.; Mishmash, Brian E.; Kropp, Stephen D., Autorotation initiation and flare cues system and related method.
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Edmonds, David O., Ceiling fan.
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Mahon James, Collision avoidance system.
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Kay, Bruce Frederic; Goodworth, Alan Roy, Composite tail cone assembly.
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Severwright Robert Anthony,GBX, Continuous wave radar altimeter.
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Crank,Kelly C, Flight recorder system with remote wireless access.
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Vacanti, David C., High sensitivity single antenna FMCW radar.
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Theriault Ricky J., Impending aircraft tail strike warning display symbology.
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Nield Brian N. ; Landes Ross A. ; Evans Monte R., Landing attitude modifier for airplane.
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Doeppner, Ronald S.; Fowler, Donald W.; Lee, Stephen P.; Hoang, Lan; Mehra, Anil, Module for integrated approach to an offshore facility.
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Crossley Simon M. (3117 Teakwood La. Plano TX 75075), Obstruction proximity indication system for an aircraft.
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Haggard Roy A., Parachute soft landing system.
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Vacanti,David C., Radar altimeter.
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Matuska, David G.; Sahasrabudhe, Vineet; Anttila, Donald S., Rotary wing aircraft flight control system with a proximity cueing and avoidance system.
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Leo G. Maloratsky, Single antenna FM radio altimeter operating in a continuous wave mode and an interrupted continuous wave mode.
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Sutour Laurent (Victor Hugo Hauts De Seine FRX), System for assisting hovering aircraft to land on the platform of a vessel.
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Ferguson, Paul David; Pos, Marc; Tinsley, Robert Jason, Systems and methods for calibration and optimization of frequency modulated continuous wave radar altimeters using adjustable self-interference cancellation.
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Greene,Randall A., Tactile cueing system and method for aiding a helicopter pilot in making landings.
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Tinsley, Robert Jason; Pos, Marc; Ferguson, Paul David, Variable delay line using variable capacitors in a maximally flat time delay filter.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Landing aid 원문보기