scholarly journals Attitude Indicator Format

2019 ◽  
Vol 9 (2) ◽  
pp. 95-105 ◽  
Author(s):  
Simon Müller ◽  
Fabienne Roche ◽  
Dietrich Manzey
Keyword(s):  
Path Tracking ◽  
Flight Path ◽  
The Other ◽  
Flight Safety ◽  
Simulator Study ◽  
Reversal Errors

Abstract. A simulator study investigated the consequences of a transition between two alternative formats of the attitude indictor in aircraft cockpits, the moving-horizon and moving-aircraft format. Two groups of novices practiced performing two flight tasks (flight-path tracking and recovery from unusual attitudes) with one attitude-indicator format for six practice sessions, before transitioning to the other format. The results show that, after practice, participants were able to perform both tasks equally well with both attitude-indicator formats. However, the number of reversal errors in the recovery task increased considerably when transitioning from the moving-aircraft to moving-horizon format. No such effect emerged for the other direction. This suggests that the former transition is more difficult and represents a possible risk for flight safety.

Novel probabilistic dynamic safety metric formulations for flight path determination

2012 ◽  
Vol 227 (1) ◽  
pp. 185-198
Author(s):  
Nesrin Sarigul-Klijn ◽  
Anthony White
Keyword(s):  
Quantitative Analysis ◽  
Case Studies ◽  
East Coast ◽  
Flight Path ◽  
The Other ◽  
The West ◽  
Landing Sites ◽  
Novel Method ◽  
Safety Metrics

This article details a novel method for the determination of safe flight paths dynamically following an in-flight distress event. The method is based on probabilistic safety metrics which also include the touchdown and evacuation/rescue phases after landing. Two case studies simulating in-flight distress events, one from the west and the other from the east coast are presented using these formulations for a quantitative analysis. It is found that the nearest landing sites are not always the safest ones showing the benefits of the newly developed safety metrics. Finally, the path safety levels are plotted as a function of mission safety probability values using innovative polar plots that provide useful information to pilots.

scholarly journals Flight Safety During the Aircraft’s Motion Along the Runway Line

2017 ◽  
Vol 4 (1) ◽  
pp. 39-45
Author(s):  
Mareks Šlihta ◽  
Ramachandran Karunanidhi
Keyword(s):  
Flight Path ◽  
Flight Safety ◽  
Centre Line

Abstract The main purpose of this article is to identify and prevent problems related to the flight path diversion on the runway centre line while landing.

scholarly journals Flight-Path Tracking Control of an Aircraft Using Backstepping Controller

2015 ◽  
Vol 15 (2) ◽  
pp. 270
Author(s):  
Labane Chrif ◽  
Zemalache Meguenni Kada ◽  
Tahar Mohamed
Keyword(s):  
Linear Models ◽  
Equations Of Motion ◽  
Path Tracking ◽  
Flight Path ◽  
Primary Control ◽  
Feedback Form ◽  
Nonlinear Simulation ◽  
Stabilizing Controller ◽  
External Loop ◽  
Highly Nonlinear

For transportation aircraft, the primary control objective for an autopilot system engaged during approach and landing is relative to the flight path tracking on the basis of highly simplified linear models of flight dynamics. The dynamics governing the flight path of an aircraft are in general highly nonlinear and involve complex physics for which no accurate models are available. In this paper a nonlinear model describing the longitudinal equations of motion in strick feedback form is derived. Backstepping is utilized for the construction of a globally stabilizing controller with a number of free parameters. It is implemented a controller with an internal loop controls involving the pitch rate of the aircraft and an external loop which includes angle of attack, path angle and pitch angle. Finally, nonlinear simulation results for a longitudinal model of a transportation aircraft are displayed and discussed.

3-D Flight Path Tracking Control for Unmanned Aerial Vehicles Under Wind Environments

2019 ◽  
Vol 68 (12) ◽  
pp. 11621-11634 ◽  
Author(s):  
Kazuo Tanaka ◽  
Motoyasu Tanaka ◽  
Yutoku Takahashi ◽  
Arimasa Iwase ◽  
Hua O. Wang
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Tracking Control ◽  
Path Tracking ◽  
Flight Path ◽  
Aerial Vehicles

Accurate flight path tracking control for powered parafoil aerial vehicle using ADRC-based wind feedforward compensation

2019 ◽  
Vol 84 ◽  
pp. 904-915 ◽  
Author(s):  
Shuzhen Luo ◽  
Qinglin Sun ◽  
Wannan Wu ◽  
Mingwei Sun ◽  
Zengqiang Chen ◽  
...  
Keyword(s):  
Tracking Control ◽  
Path Tracking ◽  
Flight Path ◽  
Aerial Vehicle ◽  
Powered Parafoil

The best match-up of airline advertising endorsement and flight safety message

2016 ◽  
Vol 28 (11) ◽  
pp. 2533-2552 ◽  
Author(s):  
Seongseop (Sam) Kim ◽  
Kuo-Ching Wang ◽  
Wan-Ting Jhu ◽  
Yang (Young) Gao
Keyword(s):  
Airline Industry ◽  
Design Methodology ◽  
The Other ◽  
Flight Safety ◽  
Content Type ◽  
Advertising Effect ◽  
Safety Message ◽  
Safety And Reliability ◽  
Typical Consumer ◽  
Practical Implications

Purpose This paper aims to explore the effectiveness of children as advertisement endorsers in the airline context, including images of safety and reliability. Design/methodology/approach This paper is intended to examine the advertising effect of endorsers (celebrities, CEOs, experts, consumers and children) in the context of the airline industry. A factorial experiment was conducted to test the communication effect (CE) of ten groups of advertisement combinations (five endorser types – with/without safety attribute). Findings The results indicate that a child endorser yielded a better CE than celebrity, CEO or typical consumer endorsers. Second, advertisements that emphasized safety had better CE than those without this emphasis. The group combining children and safety generated a better CE than most of the other groups comprising different combinations. Practical implications A child endorser and a safety message are recommended to be used in advertisements for airlines because flight passengers place importance on safety. Fragile image of child reinforces safety of an airline. Originality/value The integration of advertising endorsement and message into a conceptual model allows the current results to provide meaningful theoretical and practical implications.

Aircraft Simulator Motion and the Order of Merit of Flight Attitude and Steering Guidance Displays

1975 ◽  
Vol 17 (4) ◽  
pp. 388-400 ◽  
Author(s):  
Fuat Ince ◽  
Robert C. Williges ◽  
Stanley N. Roscoe
Keyword(s):  
Flight Path ◽  
Tracking Performance ◽  
Flight Performance ◽  
Motion Cues ◽  
Flight Experiment ◽  
Physical Motion ◽  
Vestibular Cues ◽  
Attitude Tracking ◽  
Simulator Study ◽  
Simulator Motion

Twenty-four nonpilot, volunteer subjects were tested on three flight tasks while flying four basic aircraft attitude presentations (moving horizon, moving airplane, frequency-separated, and kinalog) in a light twin-engine aircraft simulator providing three types of motion cues (no motion, standard GAT-2 motion, and washout motion). The flight tasks involved conflicting visual and vestibular cues and included disturbed attitude tracking, command flight path tracking in both pursuit and compensatory modes, and a series of recovery trials from discrete unknown attitudes. To provide a basis for comparison, the present simulator study closely replicated the procedures used in the Roscoe and Williges (1975) flight experiment. The frequency-separated display yielded performances at least equivalent and in some cases superior to those obtained with the conventional moving horizon display. Either type of simulator motion resulted in better disturbed attitude tracking performance than no motion, and washout motion provided stereotypic control responses in recovery from unknown attitudes most closely corresponding to those obtained in flight. It was concluded that care must be used in generalizing simulator results to flight performance when no physical motion cues or inappropriate ones are present in the simulator.

Effects of Flexibility on the Stability of Flying Aircraft

2004 ◽  
Vol 127 (1) ◽  
pp. 41-49 ◽  
Author(s):  
Ilhan Tuzcu ◽  
Leonard Meirovitch
Keyword(s):  
Feedback Control ◽  
Eigenvalue Problem ◽  
Rigid Body ◽  
Flight Dynamics ◽  
Flight Path ◽  
The Other ◽  
Flexible Aircraft ◽  
First Case ◽  
Rigid Body Motions ◽  
The Stability

Traditionally, flying aircraft have been treated within the confines of flight dynamics, which is concerned, for the most part, with rigid aircraft. On the other hand, flexible aircraft fall in the domain of aeroelasticity. In reality all aircraft possess some measure of flexibility and carry out rigid body maneuvers, so that the question arises as to whether rigid body motions and flexibility in combination can affect adversely the stability of flying aircraft. This paper addresses this question by solving the eigenvalue problem for the following three cases: (i) the flight dynamics of a flexible aircraft regarded as rigid and whose perturbations about the flight path are controlled by feedback control, (ii) the aeroelasticity of a corresponding flexible aircraft prevented from undergoing rigid body translations and rotations, and (iii) the control of the actual flexible aircraft using the control gains derived in the first case by regarding the aircraft as rigid. This investigation demonstrates that it is not always safe to treat separately rigid body and flexibility effects in a flying flexible aircraft.

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