The Department of Aeronautics and Astronautics at the Naval Postgraduate School (NPS) is conducting a research program in methods of higher harmonic control (HHC) for reduction of helicopter vibrations. The program at NPS uses remotely piloted helicopters (RPH) to study HHC effects on vibration and blade load reduction. The scope of this master's thesis was to measure the baseline vibration profile of the RPH test vehicles prior to the installation of a HHC system. This goal was met by the...
Topics: HHC, RPH, Vibrations, Flight Tests, Ground Tests
This paper highlights the technology development of two flow control concepts for aircraft drag reduction. The NASA Environmentally Responsible Aviation (ERA) project worked with Boeing to demonstrate these two concepts on a specially outfitted Boeing 757 ecoDemonstrator during the spring of 2015. The first flow control concept used Active Flow Control (AFC) to delay flow separation on a highly deflected rudder and increase the side force that it generates. This may enable a smaller vertical...
Topics: 1e229fe5b7284965a153b0f761643383, Alexander, Michael G., Andino, Marlyn Y., Boeing Co., Eppink,...
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xviii, 347 pages, 90 unnumbered pages of plates : 23 cm
Topics: Airplanes -- Flight testing -- History, Airplanes -- Flight testing, Flugerprobung, Geschichte,...
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MY PERSONAL RESEARCH AROUND ADVANCED AND ALTERNATIVE (SPACE & TERRESTRIAL) PROPULSION ***NO PROPELLENT!!!*** BREAKTHROUGH PHYSICS ADVANCED CONCEPTS AND DEMONSTRATIONS ANTIMATTER PROPULSION ANTI PROTON PROPULSION SPACE DRIVES AUXILLARY SPACE PROPULSION ELECTRIC & ELECTROMAGNETIC PROPULSION FLIGHT TESTS FUSION, GAS TURBINE, HALL, INERTIAL, MIRROR FUSION, MPD & MAGNETOHYDRODYNAMIC PROPULSION
Topics: SOVEREIGN WEALTH US, LEE JOSEPH COMMON, NASA, DTIC, GLENN RESEARCH CENTER, FORIEGN NATIONS,...
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MY PERSONAL RESEARCH AROUND ADVANCED AND ALTERNATIVE (SPACE & TERRESTRIAL) PROPULSION ***NO PROPELLENT!!!*** BREAKTHROUGH PHYSICS ADVANCED CONCEPTS AND DEMONSTRATIONS ANTIMATTER PROPULSION ANTI PROTON PROPULSION SPACE DRIVES AUXILLARY SPACE PROPULSION ELECTRIC & ELECTROMAGNETIC PROPULSION FLIGHT TESTS FUSION, GAS TURBINE, HALL, INERTIAL, MIRROR FUSION, MPD & MAGNETOHYDRODYNAMIC PROPULSION
Topics: RESEARCH, ADVANCED, ALTERNATIVE (SPACE & TERRESTRIAL) PROPULSION, ***NO PROPELLENT!!!***,...
C836 Lab News 01 21 83
Topics: sandia, developed, data, system, tion, design, program, nuclear, solar, technical accomplishments,...
This document is a flight test report from the Operational perspective for Flight Test Series 3, a subpart of the Unmanned Aircraft System (UAS) Integration in the National Airspace System (NAS) project. Flight Test Series 3 testing began on June 15, 2015, and concluded on August 12, 2015. Participants included NASA Ames Research Center, NASA Armstrong Flight Research Center, NASA Glenn Research Center, NASA Langley Research center, General Atomics Aeronautical Systems, Inc., and Honeywell. Key...
Topics: NASA Technical Reports Server (NTRS), DATA ACQUISITION, FLIGHT TESTS, LESSONS LEARNED, NATIONAL...
These cards are part of the Series 3 flight test documentation conducted between primary aircraft and intruder aircraft. This research is part of the UAS in the NAS Flight Test Program.
Topics: NASA Technical Reports Server (NTRS), UNMANNED AIRCRAFT SYSTEMS, FLIGHT TESTS, LOW SPEED, A-6...
This presentation will help to promote air-launch technologies that are being developed at NASA AFRC and enhance the public and aeromodeling communities awareness of current progress.
Topics: NASA Technical Reports Server (NTRS), AIR LAUNCHING, AIRCRAFT MAINTENANCE, FLIGHT TESTS, GLIDERS,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), UNMANNED AIRCRAFT SYSTEMS, FLIGHT TESTS, SELF TESTS, AIRCRAFT...
No abstract available
Topics: NASA Technical Reports Server (NTRS), HEAD-UP DISPLAYS, FIELD OF VIEW, ENHANCED VISION, SUPERSONIC...
No abstract available
Topics: NASA Technical Reports Server (NTRS), UNMANNED AIRCRAFT SYSTEMS, NOISE REDUCTION, DRONE AIRCRAFT,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), AERODYNAMIC CHARACTERISTICS, AEROACOUSTICS, FLIGHT TESTS,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), ROTARY WING AIRCRAFT, AIRCRAFT NOISE, LOW ALTITUDE, NOISE...
No abstract available
Topics: NASA Technical Reports Server (NTRS), FLIGHT MANAGEMENT SYSTEMS, ENHANCED VISION, TECHNOLOGY...
No abstract available
Topics: NASA Technical Reports Server (NTRS), OPTICAL RADAR, PULSE DOPPLER RADAR, TRANSMITTER RECEIVERS,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), AIR TRAFFIC CONTROL, AIR NAVIGATION, AIRCRAFT APPROACH...
NASA Langley Research Center has a long history of developing 2-micron lasers. From fundamental spectroscopy research, theoretical prediction of new materials, laser demonstration and engineering of lidar systems, it has been a very successful program spanning around two decades. Successful development of 2-micron lasers has led to development of a state-of-the-art compact lidar transceiver for a pulsed coherent Doppler lidar system for wind measurement with an unprecedented laser pulse energy...
Topics: NASA Technical Reports Server (NTRS), SOLID STATE, PULSED LASERS, OPTICAL RADAR, DIFFERENTIAL...
This report provides a code-to-code comparison between PATO, a recently developed high fidelity material response code, and FIAT, NASA's legacy code for ablation response modeling. The goal is to demonstrates that FIAT and PATO generate the same results when using the same models. Test cases of increasing complexity are used, from both arc-jet testing and flight experiment. When using the exact same physical models, material properties and boundary conditions, the two codes give results that...
Topics: NASA Technical Reports Server (NTRS), ABLATIVE MATERIALS, THERMAL PROTECTION, FLIGHT TESTS, HEAT...
In Spring 2013, high level NASA and Boeing management were seeking opportunities to collaborate on a flight test activity involving the ecoDemonstrator. The Airspace Systems Program Office identified FIM as a viable candidate. ATD-1 accepted the challenge. Work began in July for a December 2013 flight test.
Topics: NASA Technical Reports Server (NTRS), AIR TRAFFIC CONTROL, RESEARCH AIRCRAFT, AIRCRAFT APPROACH...
Insect residue contamination on aircraft wings can decrease fuel efficiency in aircraft designed for natural laminar flow. Insect residues can cause a premature transition to turbulent flow, increasing fuel burn and making the aircraft less environmentally friendly. Surfaces, designed to minimize insect residue adhesion, were evaluated through flight testing on a Falcon HU-25C aircraft flown along the coast of Virginia and North Carolina. The surfaces were affixed to the wing leading edge and...
Topics: NASA Technical Reports Server (NTRS), ADHESION, METAL SURFACES, CONTAMINATION, INSECTS, FLIGHT...
For the first time, a suite of three lidar sensors have been used in flight to scan a lunar-like hazard field, identify a safe landing site, and, in concert with an experimental Guidance, Navigation, and Control (GN&C) system, help to guide the Morpheus autonomous, rocket-propelled, free-flying lander to that safe site on the hazard field. The lidar sensors and GN&C system are part of the Autonomous Precision Landing and Hazard Detection and Avoidance Technology (ALHAT) project which...
Topics: NASA Technical Reports Server (NTRS), PLANETARY LANDING, SPACECRAFT GUIDANCE, SPACE NAVIGATION,...
Carbon dioxide (CO2) is well known for its importance as an atmospheric greenhouse gas, with many sources and sinks around the globe. Understanding the fluxes of carbon into and out of the atmosphere is a complex and daunting challenge. One tool applied by scientists to measure the vertical flux of CO2 near the surface uses the eddy covariance technique, most often from towers but also from aircraft flying specific patterns over the study area. In this technique, variations of constituents of...
Topics: NASA Technical Reports Server (NTRS), FLIGHT TESTS, AIRBORNE LASERS, ABSORPTION SPECTROSCOPY,...
A coherent Doppler lidar capable of providing accurate velocity and altitude data has been developed and demonstrated for future NASA missions to the solar system bodies requiring precision navigation and controlled soft landing.
Topics: NASA Technical Reports Server (NTRS), DATA ACQUISITION, DESIGN ANALYSIS, DOPPLER NAVIGATION, FLIGHT...
Greased Lightning (GL-10) is an aircraft configuration that combines the characteristics of a cruise efficient airplane with the ability to perform vertical takeoffs and landings (VTOL). This presentation will summarize the results of the flight test experiments. Two key technologies have been utilized in this aircraft design. Namely, distributed electric propulsion and closed loop control laws to be able to fly an inherently unstable aircraft. For many decades we as an aviation industry have...
Topics: NASA Technical Reports Server (NTRS), TILT WING AIRCRAFT, VERTICAL TAKEOFF AIRCRAFT, VERTICAL...
Hypersonic Inflatable Aerodynamic Decelerator (HIAD) technology readiness levels have been incrementally matured by NASA over the last thirteen years, with most recent support from NASA's Space Technology Mission Directorate (STMD) Game Changing Development Program (GCDP). Recently STMD GCDP has authorized funding and support through fiscal year 2015 (FY15) for continued HIAD ground developments which support a Mars Entry, Descent, and Landing (EDL) study. The Mars study will assess the...
Topics: NASA Technical Reports Server (NTRS), INFLATABLE STRUCTURES, AERODYNAMIC BRAKES, HYPERSONICS,...
No abstract available
Topics: NASA Technical Reports Server (NTRS), HELICOPTERS, BLADE-VORTEX INTERACTION, BLADE SLAP NOISE,...
A key capability envisioned for the future air transportation system is the concept of equivalent visual operations (EVO). EVO is the capability to achieve the safety of current-day Visual Flight Rules (VFR) operations and maintain the operational tempos of VFR irrespective of the weather and visibility conditions. Enhanced Flight Vision Systems (EFVS) offer a path to achieve EVO. NASA has successfully tested EFVS for commercial flight operations that has helped establish the technical merits...
Topics: NASA Technical Reports Server (NTRS), CIVIL AVIATION, VISUAL TASKS, VISUAL FLIGHT RULES, HEAD-UP...
NASA's Propulsion PathFinder (PPF) project will flight test a variety of CubeSat propulsion systems in a relevant space environment, thereby elevating the Technology Readiness Level (TRL), or technology maturity level, of these subsystems to TRL 7. A series of flights are planned in low Earth orbit to characterize the performance of each propulsion system and demonstrate the capability to perform orbital maneuvers.
Topics: NASA Technical Reports Server (NTRS), SMALL SCIENTIFIC SATELLITES, FLIGHT TESTS, PROPULSION SYSTEM...
From the 1st of June until the 21st of August, the internship has been conducted at NASA Ames Research Center as part of the Master of Space Studies at the International Space University. The main activities consisted of doing research on UAV flight--testing and the assessing of safety with respect to Beyond--Line--Of--Sight operations. Further activities consisted of accommodating international partners and potential partners at the NASA Ames site, in order to identify mutual interest...
Topics: NASA Technical Reports Server (NTRS), UNMANNED AIRCRAFT SYSTEMS, REMOTELY PILOTED VEHICLES,...
Software tools are being developed by the Autonomy Incubator at NASA's Langley Research Center that will provide an integrated and scalable capability to support research and non-research flight operations across several flight domains, including urban and mixed indoor-outdoor operations. These tools incorporate a full range of data products to support mission planning, approval, flight operations, and post-flight review. The system can support a number of different operational scenarios that...
Topics: NASA Technical Reports Server (NTRS), SOFTWARE DEVELOPMENT TOOLS, FLIGHT OPERATIONS, UNMANNED...
A synthesis is presented of recent numerical predictions for the F-16XL aircraft flow fields and aerodynamics. The computational results were all performed with hybrid RANS/LES formulations, with an emphasis on unsteady flows and subsequent aerodynamics, and results from five computational methods are included. The work was focused on one particular low-speed, high angle-of-attack flight test condition, and comparisons against flight-test data are included. This work represents the third...
Topics: NASA Technical Reports Server (NTRS), F-16 AIRCRAFT, SLENDER BODIES, LOW SPEED, ANGLE OF ATTACK,...
The trailing vortex induced aerodynamic loads on a Falcon 20G business jet flying in the wake of a DC-8 are predicted to provide a preflight estimate of safe trail distances during flight test measurements in the wake. Static and dynamic loads on the airframe flying in the near wake are shown at a matrix of locations, and the dynamic motion of the Falcon 20G during traverses of the DC-8 primary trailing vortex is simulated. Safe trailing distances for the test flights are determined, and...
Topics: NASA Technical Reports Server (NTRS), AERODYNAMIC LOADS, DYNAMIC LOADS, FLIGHT TESTS, NEAR WAKES,...
A new model for estimating the noise radiation during maneuvering flight is developed in this paper. The model applies the Quasi-Static Acoustic Mapping (Q-SAM) method to a database of acoustic spheres generated using the Fundamental Rotorcraft Acoustics Modeling from Experiments (FRAME) technique. A method is developed to generate a realistic flight trajectory from a limited set of waypoints and is used to calculate the quasi-static operating condition and corresponding acoustic sphere for the...
Topics: NASA Technical Reports Server (NTRS), AERODYNAMIC NOISE, AIRCRAFT MANEUVERS, HELICOPTERS, MISSION...
For the first time, a suite of three lidar sensors have been used in flight to scan a lunar-like hazard field, identify a safe landing site, and, in concert with an experimental Guidance, Navigation, and Control (GN&C) system, guide the Morpheus autonomous, rocket-propelled, free-flying test bed to a safe landing on the hazard field. The lidar sensors and GN&C system are part of the Autonomous Precision Landing and Hazard Detection and Avoidance Technology (ALHAT) project which has been...
Topics: NASA Technical Reports Server (NTRS), LANDING SITES, DOPPLER RADAR, OPTICAL RADAR, LASER...
This paper discusses the development and testing of an innovative small UAS (Unmanned Aircraft System). The design of the vehicle was driven by the need to both have long endurance yet still have the convenience of V/TOL (Vertical Take-Off and Landing) operation. The paper discusses some of the design considerations and configurations evaluated in searching for a configuration that met the demanding mission requirements. The paper also discusses some aspects of the compound wing and...
Topics: NASA Technical Reports Server (NTRS), WINGS, BODY-WING CONFIGURATIONS, PILOTLESS AIRCRAFT, FLIGHT...
This paper presents an interface system display which is conceived to improve pilot situation awareness with respect to a flight envelope protection system developed for a mid-sized transport aircraft. The new display is designed to complement existing cockpit displays, and to augment them with information that relates to both aircraft state and the control automation itself. In particular, the proposed display provides cues about the state of automation directly in terms of pilot control...
Topics: NASA Technical Reports Server (NTRS), FLIGHT ENVELOPES, PROTECTION, DISPLAY DEVICES, ATTITUDE...
The first flights of the ER-2 solar cell calibration demonstration were conducted during September-October of 2014. Three flights were performed that not only tested out the equipment and operational procedures, but also demonstrated the capability of this unique facility by conducting the first short-circuit measurements on a variety of test solar cells. Very preliminary results of these first flights were presented at the 2014 Space Photovoltaic Research and Technology (SPRAT) Conference in...
Topics: NASA Technical Reports Server (NTRS), U-2 AIRCRAFT, HIGH ALTITUDE ENVIRONMENTS, SOLAR CELLS,...
The Hypersonic International Flight Research Experimentation (HIFiRE) program is a hypersonic flight test program executed by the Air Force Research Laboratory (AFRL) and Australian Defence Science and Technology Organisation (DSTO). This flight contained a cylinder-flare induced shock boundary layer interaction (SBLI). Computations of the interaction were conducted for a number of times during the ascent. The DPLR code used for predictions was calibrated against ground test data prior to...
Topics: NASA Technical Reports Server (NTRS), HYPERSONIC FLIGHT, TURBULENT BOUNDARY LAYER, SHOCK LAYERS,...
Analysis completed since the test suggests that all test objectives were met– This claim will be verified in the coming weeks as the data is examined further– Final disposition of test objective success will be documented in a final reportsubmitted to NASA stakeholders (early August 2015)– Expect conference paper in early 2016• Data products and observations made during testing will be used to refinecomputational models of Nano-ADEPT• Carbon fabric relaxed from its pre-test state...
Topics: NASA Technical Reports Server (NTRS), WIND TUNNEL TESTS, BLUNT BODIES, SPACECRAFT CONTROL,...
A flight-test campaign of a supersonic natural laminar flow airfoil has been recently completed. The test surface was an 80-inch (203 cm) chord and 40-inch (102 cm) span article mounted on the centerline store location of an F-15B airplane (McDonnell Douglas Corporation, now The Boeing Company, Chicago, Illinois). The test article was designed with a leading edge sweep of effectively 0 deg to minimize boundary layer crossflow. The test article surface was coated with an insulating material to...
Topics: NASA Technical Reports Server (NTRS), SUPERSONIC CRUISE AIRCRAFT RESEARCH, LAMINAR FLOW, SUPERSONIC...
The "Unmanned Aircraft System (UAS) Integration into the National Airspace System (NAS)" Project conducted flight test program, referred to as Flight Test 3, at Armstrong Flight Research Center from June - August 2015. Four flight test days were dedicated to the NASA Ames-developed Detect and Avoid (DAA) System referred to as Autoresolver. The encounter scenarios, which involved NASA's Ikhana UAS and a manned intruder aircraft, were designed to collect data on DAA system performance...
Topics: NASA Technical Reports Server (NTRS), UNMANNED AIRCRAFT SYSTEMS, PILOTLESS AIRCRAFT, REMOTELY...
This paper presents detailed description of a novel CFD procedure and comparison of its solution results to that obtained by other available CFD codes as well as actual flight and wind tunnel test data pertaining to the GIII aircraft, currently undergoing flight testing at AFRC.
Topics: NASA Technical Reports Server (NTRS), COMPUTATIONAL FLUID DYNAMICS, FLIGHT TESTS, WIND TUNNEL...
This paper presents detailed description of a novel CFD procedure and comparison of its solution results to that obtained by other available CFD codes as well as actual flight and wind tunnel test data pertaining to the GIII aircraft, currently undergoing flight testing at AFRC.
Topics: NASA Technical Reports Server (NTRS), COMPUTATIONAL FLUID DYNAMICS, NUMERICAL ANALYSIS, FLIGHT...
This presentation and companion text describe the history of the development of Reaction Control Systems.
Topics: NASA Technical Reports Server (NTRS), RESEARCH AIRCRAFT, HIGH SPEED, FLIGHT, REACTION CONTROL,...
This presentation discusses the current projects and research in the Aerostructures branch and highlights what NASA has to offer.
Topics: NASA Technical Reports Server (NTRS), AEROSPACE ENGINEERING, FLIGHT TESTS, GROUND TESTS, DYNAMIC...
This presentation gives insight into a joint flight testing effort that included participation from NASA, Honeywell, and General Atomics. The presentation includes roles and responsibilities, test flow, and encounter requirements and summary.
Topics: NASA Technical Reports Server (NTRS), UNMANNED AIRCRAFT SYSTEMS, FLIGHT TESTS, ALTITUDE TESTS,...
The presentation will overview the flight test capabilities at NASA Armstrong Flight Research Center (AFRC), to open up partnership collaboration opportunities for Wireless Community to conduct flight testing of aerospace wireless technologies. Also, it will brief the current activities on wireless sensor system at AFRC through SBIR (Small Business Innovation Research) proposals, and it will show the current areas of interest on wireless technologies that AFRC would like collaborate with...
Topics: NASA Technical Reports Server (NTRS), GOVERNMENT/INDUSTRY RELATIONS, WIRELESS COMMUNICATION, FLIGHT...
No abstract available
Topics: NASA Technical Reports Server (NTRS), LAUNCH VEHICLES, FIGHTER AIRCRAFT, CONTROL SIMULATION, FLIGHT...
In this paper we present a technique for approximating the short-period dynamics of an exploration-class launch vehicle during flight test with a high-performance surrogate aircraft in relatively benign endoatmospheric flight conditions. The surrogate vehicle relies upon a nonlinear dynamic inversion scheme with proportional-integral feedback to drive a subset of the aircraft states into coincidence with the states of a time-varying reference model that simulates the unstable rigid body...
Topics: NASA Technical Reports Server (NTRS), LAUNCH VEHICLES, FLIGHT SIMULATION, RIGID STRUCTURES,...
