Research papers
5,883 papers · NASA NTRS, NTSB, FAA CAMI
NASA NTRS · 1,269 NTSB Safety Studies · 12 NTSB Aircraft Accident Reports · 17 Embry-Riddle Scholarly Commons · 1,993
5,883 matches
- NASA NTRS 2019 CDMS Other - NASA Technical Note (TN)
Prediction of lift and drag for slender sharp-edge delta wings in ground proximity
Predicting lift and drag for slender sharp-edge Delta wings in ground proximity
- NASA NTRS 2019 CDMS Other - NASA Technical Note (TN)
Effects of ground proximity on the longitudinal aerodynamic characteristics of an unswept aspect-ratio-10 wing
Ground proximity effects of unswept aspect ratio 10 wing on longitudinal aerodynamic characteristics
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
Apollo 15 mission main parachute failure
The failure of one of the three main parachutes of the Apollo 15 spacecraft was investigated by studying malfunctions in the forward heat shield, broken riser, and firing the fuel expelled from the command module reactio…
- NASA NTRS 2019 CDMS Contractor Report (CR)
Dynamics of the vestibular system and their relation to motion perception, spatial disorientation, and illusions
Human vestibular system and its connection with oculomotor system and their relation to motion perception, spatial disorientation, and illusions
- NASA NTRS 2019 CDMS Contractor Report (CR)
Experimental atmospheric absorption values from aircraft flyover noise signals
Analysis of aircraft noise recordings to determine experimental values of atmospheric sound absorption
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
Hydraulic fluid analysis for antenna drive systems
Hydraulic fluid analysis for reducing wear, and detection of component failure
- NASA NTRS 2019 CDMS Other - NASA Tech Brief
Hydraulic brake safety valve
Safety device, consisting of three separate fluid chambers, insures that two wheels of a brake system continue to function if a failure occurs.
- NASA NTRS 2019 CDMS Other - NASA Technical Note (TN)
Fixed-base simulation evaluation of various low-visibility landing systems for helicopters
Fixed base simulation evaluation of one fully automatic and six manual low visibility landing systems for helicopters
- NASA NTRS 2019 CDMS Reprint (Version printed in journal)
Splanchnic vasoconstriction in hyperthermic man - Role of falling blood pressure.
Results of a study in which six supine resting subjects, wearing water-perfused suits, had body skin temperature controlled at 35 C for 30 min (control period), then rapidly increased to 40.5 C for 43 to 50 min (heating …
- Semantic Scholar 2019 Article (AIAA Aviation 2019 Forum)
A Bayesian Safety Assessment Methodology for Novel Aircraft Architectures and Technologies Using Continuous FHA
Novel architectures and technologies carry with them an uncertainty related to their reliability and associated safety risk. Existing safety assessment methods involve determining the severity of discrete functional fail…
- arXiv 2019 ARXIV arXiv preprint
Flight Control for UAV Loitering Over a Ground Target with Unknown Maneuver
This paper proposes a flight controller for an unmanned aerial vehicle (UAV) to loiter over a ground moving target (GMT). We are concerned with the scenario that the stochastically time-varying maneuver of the GMT is unk…
- NASA NTRS 2019 LaRC Other - NASA Technical Note (TN)
Relationship Between Magnitude of Applied Spin Recovery Moment and Ensuing Number of Recovery Turns
An analytical study has been made to investigate the relationship between the magnitude of the applied spin recovery moment and the ensuing number of turns made during recovery from a developed spin with a view toward de…
- NASA NTRS 2019 CDMS Reprint (Version printed in journal)
Analysis of deep-stall characteristics of T- tailed aircraft configurations and some recovery procedures.
Deep-stall characteristics of T-tailed aircraft configurations and recovery procedures, noting parameters of pitch-up, angle of attack, etc
- NASA NTRS 2019 CDMS Contractor Report (CR)
Full-scale ground proximity investigation of a VTOL fighter model aircraft
Exhaust gas ingestion characteristics and induced aerodynamics for vertical takeoff lift engine fighter model in ground proximity
- NASA NTRS 2019 CDMS Conference Paper
Reliability assessment testing of 2 kw hydrogen-oxygen fuel cell stacks.
Reliability assessment test program for determining capabilities and limitations of 2 kw hydrogen-oxygen fuel cell stacks
- NASA NTRS 2019 CDMS Reprint (Version printed in journal)
Clear air turbulence.
Clear air turbulence problems including forecasting inadequacy, detection device requirements, categories, etc
- NASA NTRS 2019 CDMS Contractor Report (CR)
Estimating Refractive Index Spectra in Regions of Clear Air Turbulence
Estimation of refractive index spectra in regions of clear air turbulence
- NASA NTRS 2019 CDMS Contractor Report (CR)
Remote Detection of Clear Air Turbulence. Part I - Pulsed Microwave Radars
Pulsed microwave radar backscattering used in model tests of clear air turbulence detection
- NASA NTRS 2019 CDMS Contractor Report (CR)
Engineering design of a pitot-static probe payload Engineering report no. 2
Engineering aspects of instrumentation and circuitry for pitot-static probe payloads for Nike-Cajun rockets
- NASA NTRS 2019 CDMS Contractor Report (CR)
Study of flight management requirements during SST low visibility approach and landing operations Final summary report
Flight management operational problems and task requirements for low visibility approach and landing of supersonic transports
- NASA NTRS 2019 CDMS Reprint (Version printed in journal)
Fatigue behavior of aluminum in vacuum.
Tenfold increase in fatigue life of 1100 aluminum in reverse bending at vacuum level below 10-2 torr due to retardation of crack propagation phase of fatigue process
- Semantic Scholar 2019 Article (AIAA Aviation 2019 Forum)
Analysis of interactions between Urban Air Mobility (UAM) operations and current air traffic in urban areas: Traffic alert and Collision Avoidance System (TCAS) study for UAM Operations
This paper presents a preliminary modeling and analysis of interactions between proposed UAM operations and present-day conventional traffic if UAM operations occurred along FAAapproved helicopter routes and altitude cei…
- arXiv 2019 ARXIV arXiv preprint
Coordinated Path Following Control of Fixed-wing Unmanned Aerial Vehicles
In this paper, we investigate the problem of coordinated path following for fixed-wing UAVs with speed constraints in 2D plane. The objective is to steer a fleet of UAVs along the path(s) while achieving the desired sequ…
- arXiv 2019 ARXIV arXiv preprint
Deep Reinforcement Learning for Unmanned Aerial Vehicle-Assisted Vehicular Networks
Unmanned aerial vehicles (UAVs) are envisioned to complement the 5G communication infrastructure in future smart cities. Hot spots easily appear in road intersections, where effective communication among vehicles is chal…
- arXiv 2019 ARXIV arXiv preprint
Towards Big data processing in IoT: Path Planning and Resource Management of UAV Base Stations in Mobile-Edge Computing System
Heavy data load and wide cover range have always been crucial problems for online data processing in internet of things (IoT). Recently, mobile-edge computing (MEC) and unmanned aerial vehicle base stations (UAV-BSs) hav…
- arXiv 2019 ARXIV arXiv preprint
Towards Resilient UAV: Escape Time in GPS Denied Environment with Sensor Drift
This paper considers a resilient state estimation framework for unmanned aerial vehicles (UAVs) that integrates a Kalman filter-like state estimator and an attack detector.
- arXiv 2019 ARXIV arXiv preprint
Estimation and Tracking of a Moving Target by Unmanned Aerial Vehicles
An image-based control strategy along with estimation of target motion is developed to track dynamic targets without motion constraints.
- Semantic Scholar 2019 Article (Aerospace)
The Unexplored Link between Communication and Trust in Aviation Maintenance Practice
Communication and trust are fundamental factors in the operation of complex and highly regulated industries like aviation maintenance.
- Semantic Scholar 2019 Article (Case Studies on Transport Policy)
Investigating the moderating effects of multi group on safety performance: The case of civil aviation
Abstract The main purpose of this study is to analyze the moderating effects of the multi-group in the relationship safety management system (SMS) and human factors (HF) and civil aviation safety (CAS) performance and to…
- Semantic Scholar 2019 Article (British Journal of Oral and Maxillofacial Surgery)
Leading article: What has an Airbus A380 Captain got to do with OMFS? Lessons from aviation to improve patient safety.
The understanding of why air accidents occur and all the factors involved with them has been a strong and constantly evolving driver for improving flight safety.
- Semantic Scholar 2019 Article (International Conference on Interaction Sciences)
Using lda2vec Topic Modeling to Identify Latent Topics in Aviation Safety Reports
The study of aviation safety report in the aviation industry usually relies on manually labeled data sets, and then classifies and models related problems, which have become insufficient in the face of increasingly rapid…
- AOPA Air Safety Institute 2019 AOPA-ASI ASI report
Loss of Control In-Flight in General Aviation: An Industry Analysis
ASI industry analysis of loss-of-control-inflight (LOC-I) as the leading fatal-accident category in GA. Decomposes LOC-I by phase of flight, pilot certificate, weather, and aircraft category.
- NASA NTRS 2019 ARC Technical Memorandum (TM)
Air Traffic Management Technology Demonstration 1 (ATD-1) Tech Transfer Document Summary: Version 3.0
This document summarizes transfer of NASA's terminal sequencing and spacing (TSS) and interval management (IM) technologies to the FAA (Federal Aviation Administration), as part of its Air Traffic Management Technology (…
- NASA NTRS 2019 CDMS Conference Paper
Analysis of deep-stall characteristics of T-tailed aircraft configurations and some recovery procedures.
Deep-stall characteristics of T-tailed aircraft configurations and recovery procedures, noting parameters of pitch-up, angle of attack, etc
- NASA NTRS 2019 CDMS Conference Paper
A simulator study of T-tail aircraft in deep stall conditions.
T tail aircraft in deep stall conditions in fixed- base cockpit simulation at large angle of attack
- NASA NTRS 2019 CDMS Other - NASA Technical Note (TN)
A parametric study of factors influencing the deep-stall pitch-up characteristics of T-tail transport aircraft
Analog computer program for parametric study of factors influencing deep stall pitch-up characteristics of T-tail transport aircraft
- NASA NTRS 2019 CDMS Reprint (Version printed in journal)
The wind-shear theory of temperate zone sporadic E.
Wind-shear theory of sporadic E layer at temperate zone with single ion and many ions, noting electron density
- NASA NTRS 2019 CDMS Reprint (Version printed in journal)
Summary of NASA research on jet transport control problems in severe turbulence.
Wind tunnel, simulator and flight test results to evaluate cockpit accelerations, handling qualities and stability and control of jet transports in severe turbulence
- NASA NTRS 2019 CDMS Conference Paper
Clear air turbulence detection and warning.
Clear air turbulence detection and warning by airborne devices including radar, IR spectrum, air temperature probes, ozone detection, etc
- NASA NTRS 2019 CDMS Reprint (Version printed in journal)
Clear air turbulence detection and warning.
Clear air turbulence detection and warning by airborne devices including radar, IR spectrum, air temperature probes, ozone detection, etc
- NASA NTRS 2019 CDMS Reprint (Version printed in journal)
A review of NASA high-altitude clear air turbulence sampling programs.
Occurrence frequency and intensity of clear air turbulence as function of altitude between 20,000 and 75,000 ft
- NASA NTRS 2019 CDMS Reprint (Version printed in journal)
Integrated operating mode of the Apollo mission simulator.
Integrated operating mode of Apollo mission simulator with mission control center for combined training of Apollo flight and ground crews
- arXiv 2019 ARXIV arXiv preprint
Research on fuzzy PID Shared control method of small brain-controlled uav
Brain-controlled unmanned aerial vehicle (uav) is a uav that can analyze human brain electrical signals through BCI to obtain flight commands.
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
A Simulator Study of T-tail Aircraft in Deep Stall Conditions
Fixed base simulation study of T-tail aircraft deep stall and recovery
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
Analysis of an emergency deceleration and descent of the XB-70-1 airplane due to engine damage resulting from structural failure
Analyzing emergency deceleration and descent of XB-70-1 airplane due to engine damage resulting from structural failure for supersonic transport data
- NASA NTRS 2019 CDMS Contractor Report (CR)
The effect of surface contamination on contact angles and surface potentials Summary report
Surface contamination effects on behavior of liquids in space vehicle tanks at zero gravity
- NASA NTRS 2019 CDMS Contractor Report (CR)
Hydrogen-oxygen electrolytic regenerative fuel cells Quarterly report, 1 Jan. - 31 Mar. 1966
Hydrogen-oxygen regenerative fuel cell testing to improve cycle life capability and to investigate modes of cell performance deterioration
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
Probabilities of zero wind shear phenomena based on Rawinsonde data records
Probabilities of zero wind shear occurence and depth based on rawinsonde data records
- NASA NTRS 2019 CDMS Contractor Report (CR)
A Wind Shear Mechanism for Producing Sporadic E by Concentrating Minor Meteoric Ions
Wind shear mechanism for producing sporadic E layer by concentrating minor meteoric ions
- NASA NTRS 2019 CDMS Contractor Report (CR)
Clear air turbulence
Research on forecasting, detection, and incidents of clear air turbulence