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Topics: DTIC Archive, UNIVERSAL TECHNOLOGY CORP DAYTON OH, *PROXIMITY DEVICES, *DETECTORS, *MATERIALS,...
This paper examines several ways of implementing multigrid algorithms on the hypercube multiprocessor. We consider both the standard multigrid algorithms and a concurrent version proposed by Gannon and Van Rosendale. We present several mappings of the mesh points onto the nodes of the cube. The main property of these mappings, which are based on binary reflected Gray codes, is that the distance between neighboring grid points remains constant from one grid level to another. This results in a...
Topics: DTIC Archive, Chan,T F, YALE UNIV NEW HAVEN CT DEPT OF COMPUTER SCIENCE, *ALGORITHMS, *GRIDS,...
A new method to process muzzle displacement transducer data has been developed and demonstrated on 5.56 and 40 mm weapon systems. The method allows much more flexibility in the placement of the measurement probes in a test fixture with no loss in measurement fidelity. The method also allows measurements to be taken with as few as two probes per axial measurement location, whereas previously used techniques required four probes.
Topics: DTIC Archive, ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH...
Local feedback stabilization of bifurcated solution branches is studied. Two cases are considered: that in which the nominal system undergoes a Hopf bifurcation as a parameter is varied, and the case of a stationary bifurcation from a simple zero eigenvalue. For each case, results on the existence of a stabilizing feedback are given, Moreover, simple synthesis techniques for the stabilizing controllers are discussed. A concept of proximity stabilization is introduced as an alternative to...
Topics: DTIC Archive, Abed, Eyad H, MARYLAND UNIV COLLEGE PARK, *CONTROL SYSTEMS, *FEEDBACK,...
This document establishes procedures and provides guidance for evaluating the functional characteristics of aircraft proximity warning devices. The primary objective of the evaluation is to determine if the test system performs its intended function in accordance with specific specification and requirements documents.
Topics: DTIC Archive, ARMY TEST AND EVALUATION COMMAND ABERDEEN PROVING GROUND MD, *AIRCRAFT DEFENSE...
The operational and physical characteristics of fluidic sensors are presented. Emphasis has been placed on those devices that are commercially available. The format is arranged so as to provide system designers with detailed data necessary to determine whether a particular device can be employed in a given system. For each sensor, manufacturer, data source, and point of contact are also listed.
Topics: DTIC Archive, Sieracki, Leonard M., LORELEI CORP GAITHERSBURG MD, *FLUIDICS, *DETECTORS,...
Identifying the nearest neighbors of a node in a graph is a key ingredient in a diverse set of ranking problems, e.g. friend suggestion in social networks, keyword search in databases, web-spam detection etc. For finding these near neighbors, we need graph theoretic measures of similarity or proximity. Most popular graph-based similarity measures, e.g. length of shortest path, the number of common neighbors etc., look at the paths between two nodes in a graph. One such class of similarity...
Topics: DTIC Archive, CARNEGIE-MELLON UNIV PITTSBURGH PA MACHINE LEARNING DEPT, *PROXIMITY DEVICES,...
Subject pilot flight tests conducted at the M.I.T. Lincoln Laboratory have produced new data characterizing the ability of general aviation pilots to visually acquire potential collision hazards when aided by Pilot Warning Instruments (PWI). In this paper major issues in the design of Pilot Warning Instruments are reviewed. Visual acquisition performances is described in terms of a non-homogeneous Poisson process and results of previous experiments are reinterpreted in this light. It is shown...
Topics: DTIC Archive, Andrews,J W, *FLIGHT INSTRUMENTS, *VISUAL PERCEPTION, *AVIATION SAFETY, *COLLISION...
This report describes the development of two types of imaging digicon detectors for ultraviolet measurements from rockets. The detectors consist of sealed tubes with a semitransparent photocathode of cesium iodide or cesium telluride. Photoelectrons accelerated to about 25 kV are detected by a silicon diode array. One tube has a ten by ten square array with proximity focussing and is used to obtain spatial intensity measurements. The other tube has a one by thirty-six linear array that is...
Topics: DTIC Archive, Russak,S L, AIR FORCE GEOPHYSICS LAB HANSCOM AFB MA, *ULTRAVIOLET DETECTORS,...
The objective of the project is to undertake research and development in the area of wireless sensor networks to provide an effective and affordable solution in support increasing requirements for reconnaissance and surveillance. A wireless sensor network, such as unattended ground sensors (UGS) network represents a set of inexpensive sensors of various types (modes) that provide an effective and affordable solution for battlefield surveillance. For example, acoustic sensors could obtain...
Topics: DTIC Archive, HAMPTON UNIV VA, *DETECTORS, *MULTIMODE, *WIRELESS LINKS, ACOUSTIC DETECTORS,...
This work provides a design method to achieve a specified probability of resolution for two target localization via a wireless network of proximity sensors. Proximity sensors simply report a single binary value indicating whether or not a target is near. The design provides the density and threshold settings to achieve the given probability of resolution for targets separated by a specified distance. Simulations are included that demonstrate that at the designed sensor density and threshold...
Topics: DTIC Archive, HAMPTON UNIV VA DEPT OF ELECTRICAL ENGINEERING, *WIRELESS LINKS, *MAXIMUM LIKELIHOOD...
Dual axis compensatory tracking was investigated as a function of whether error displays were integrated or separated, whether axis controls were integrated into one stick or remained separate, and whether the control dynamics on the two axes were the same or different. Tracking error increased and control activity decreased as a function of the summed difficulty of the two control dynamics. Integrated displays and integrated controls both led to increased confusions between tracking axes...
Topics: DTIC Archive, Fracker, Martin L, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH, *DISPLAY SYSTEMS,...
A mathematical model describing the fundamental dynamics in the interface problem between a ship, a barge, and a connecting ramp is developed and solved. The hydrodynamics for the ship and the barge are described by a 12-degree of freedom fully coupled model, which is based on potential theory and incorporates proximity effects. Ramp structural dynamics are studied by a finite element model, which has been calibrated based on detailed studies of commercially available codes. The models were...
Topics: DTIC Archive, Dalakos, Antonios, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *MARINE ENGINEERING,...
Recreation areas and campsites at Corps of Engineers water resource project have a variety of natural and man-made attributes from which tha camper can select. This study sought to identify, from this larger group of attributes, those which are most often preferred by the user. Preference research usually falls into one of two categories: (a) stated preferences solited through direct questionings, or (b) revealed preferences documented through examination of actual behavior. Both methods were...
Topics: DTIC Archive, Waring,M R, ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL...
We designed a new system for proton beam writing. The key characteristics are an improvement of the system demagnification of up to 8 and 30 in x and y, respectively compared to commercially available systems. The target chamber has show to be working properly and in initial experiments 150 nm beam spot sizes have been obtained. We have shown initial test on proton-beam writing (PBW) for Ni and Au nanowire fabrication, as well as ZnO nanowire fabrication. We have improved the resist development...
Topics: DTIC Archive, NATIONAL UNIV OF SINGAPORE DEPT OF PHYSICS, *FABRICATION, *MICROMACHINING,...
The technologies appropriate to the collection and interpretation of three-dimensional data for robotics applications are reviewed. Included are optical stereoscopy, proximity sensing, laser scanning and structured light. Specifications for current systems are presented and areas of potential improvement are identified.
Topics: DTIC Archive, GEO-CENTERS INC NEWTON CENTRE MA, *ARTIFICIAL INTELLIGENCE, *DATA ACQUISITION, *THREE...
It is of interest to the USAF whether a Ground Proximity Warning System (GPWS) similar to the type currently in production for commercial airlines could be used in highly maneuverable aircraft such as fighters and trainers. A GPWS was installed in the Crew Station Design Facility (CSDF) FB-111 Simulator, and missions were flown over various types of terrain in both VFR and IFR conditions. Reaction data was recorded, and the subjects completed questionnaires. It was concluded that pilot...
Topics: DTIC Archive, Hyatt,Christopher J, AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OHIO, *WARNING...
Undergraduate and graduate students at Washington University in St. Louis participated in the AFRL University Nanosat Program, designing, analyzing, integrating and testing protoflight hardware, ultimately earning 2nd place in the Nanosat-5 competition. The two years' effort focused on mission assurance activities (functional and environmental tests), improved documentation/process control, and progress in structural and thermal modeling. Students also revised the Bandit flight electronics to...
Topics: DTIC Archive, WASHINGTON UNIV ST LOUIS MO, *AEROSPACE SYSTEMS, *ARTIFICIAL SATELLITES, COMPETITION,...
Given an initial orbit and a set of other orbits of interest, the lowest change in velocity path between them is of high value. Software was developed to visualize the change in velocity required from a user defined window of burn to a user defined window of intercept. The time between burn and intercept is unrestricted. Multiple intercepts require searching an n! solution space, research then is focused on ways to pick optimal choices without fully calculating out the cost of doing all...
Topics: DTIC Archive, Witt, Barry R, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF...
The objective of this report is to record the decision-making process for developing the device design and fabrication workflow for the time-domain switched accelerometers (TDSA) developed as part of the Naval Innovative Science and Engineering (NISE)-funded project Time Domain Switching Proof Mass Proximity Switch Utilization for Inertial Navigation. The design and fabrication of these devices was based on using a sacrificial layer that both defines a capacitive gap for a sliding, non-contact...
Topics: DTIC Archive, SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA, *ACCELEROMETERS, DECISION...
The integration of information from several sources often proves to be an overwhelming task for the human decision-maker. It is proposed, however, that in such an information-integration task, the demand on the human's limited information processing resources will be lessened to the extent that the relevant information is displayed in proximity. In this report, proximity is defined by the degree to which the analog-visual dimensions representing the information are integral. Twenty-four...
Topics: DTIC Archive, Carswell, C M, ILLINOIS UNIV AT URBANA ENGINEERING-PSYCHOLOGY RESEARCH LAB,...
The required miniaturization of military IC devices to submicron and ultra-submicron dimensions in the 1980s raises serious questions regarding the use of electron beam (e-beam) lithographys an appropriate fabrication technique for this end. In this paper it is shown that the ultimate resolution of the e-beam process is determined by electron scattering effects in the lithographic resist material and by electron back-scattering from the underlying device substrate. The merit of the e-beam...
Topics: DTIC Archive, Iafrate,G J, ARMY ELECTRONICS RESEARCH AND DEVELOPMENT COMMAND FORT MONMOUTH NJ...
This paper describes simplified mathematical models of the Space Transportation System (STS), Reaction Control Systems (RCS), and Digital Autopilot (DAP), used in the USAFA Proximity Operations Simulator for the VAX 11/780 and the Evans and Sutherland PS 300 computers. Included in the modeling are propellant expenditures for translational maneuvers, rotational maneuvers, and attitude maintenance and on-orbit trajectory deviations induced by RCS cross coupling. This simulator serves as a...
Topics: DTIC Archive, Alfano,Salvatore, AIR FORCE ACADEMY CO, *COMPUTERIZED SIMULATION, *SPACE...
Controlled Flight Into Terrain (CFIT) accidents continue to be a major source of loss of aircraft and aircrew in both military and civil aviation (Cooper, 1995; Miller, Price, and Darrah, 1987; Proctor, 1997). These accidents usually occur in reduced-visibility conditions, and with no prior awareness of impending collision on the part of the flight crew (Scott, 1996). While warning and automated collision avoidance systems have reduced the rate of CFIT accidents, these systems focus on symptoms...
Topics: DTIC Archive, Snow, Michael P, AIR FORCE RESEARCH LAB WRIGHT-PATTERSONAFB OH CREW SYSTEM INTERFACE...
Controlled flight into terrain (CFIT) accidents continue to be a primary cause of fatalities and airframe losses in aviation. Alerting and automation technologies such as Ground Proximity Warning Systems (GPWS), Enhanced Ground Proximity Warning Systems (EGPWS), and Ground Collision Avoidance Systems (GCAS) are offered as partial solutions to this problem. This article reviews current accident data for CFIT accidents in both US Air Force and commercial aviation over the last 10 to 15 years. The...
Topics: DTIC Archive, Moroze, Michael L, AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS...
An in-house, experimental program was conducted to develop an electrooptical inspection system for use on M42/M46 grenades packed in M483 projectile bodies. Two distinct approaches to this problem are evaluated. The first approach, useful where the grenade orientation is known, is based on the use of fiberoptic proximity sensors which signal when grenade components have exceeded their allowable range of travel. The second approach, useful for random grenade orientation, is based on projecting a...
Topics: DTIC Archive, Kessler, Edward G, ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER DOVER NJ LARGE...
A literature search of recent activity to provide an independent indication of aircraft altitude was undertaken. Results indicate that there are several existing techniques in use which can readily be expanded to enhance altitude awareness to avoid inadvertent terrain collisions. Also identified are other new potential candidate systems concepts.
Topics: DTIC Archive, Shrager, Jack J., NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ,...
A noncontact multi-light source optical proximity sensor which can measure the distance, orientation, and curvature of a surface has been developed. Beams of light are sequentially focused from the ends of fiber optic cables onto a target surface. An analog light-sensor- a planar PIN diode area sensor chip - measures the position of the spots of light on the surface, and the 3-D locations of the spots are computed by triangulation. By fitting a surface to a set of points, the distance,...
Topics: DTIC Archive, Fuhrman,M, CARNEGIE-MELLON UNIV PITTSBURGH PA ROBOTICS INST, *LIGHT SOURCES, *OPTICAL...
Work in the current period was aimed at the construction of extensions of the structure-based Particle Representation and one-point models to flows with slow or moderate mean deformations and wall proximity effects. The extended model can handle strong mean or frame rotation effects, a feature that will be important for the computation of aerodynamic and turbomachinery flows. The performance of Reynolds Stress Transport (RST) models in non-equilibrium flows is limited by the lack of information...
Topics: DTIC Archive, Reynolds, W C, STANFORD UNIV CA DEPT OF MECHANICAL ENGINEERING, *MODELS, *TURBULENCE,...
This report addresses the jet engine noise levels in the proximity of airports. Noise measurements are given and the relation of noise levels to atmospheric conditions is related. This information is compiled to aid engineers in the construction of buildings near airports for maximum sound attenuation. Keywords: Tables(Data), Acoustic measurement.
Topics: DTIC Archive, Marcks, Russell K, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH, *ACOUSTIC...
In this paper we introduce wavelet video processing of proximity sensor signals. Proximity sensing is required for a wide range of military and commercial applications, including weapon fuzing, robotics, and automotive collision avoidance. While our proposed method temporarily increases signal dimension, it eventually performs data compression through the extraction of salient signal features. This data compression in turn reduces the necessary complexity of the remaining computational...
Topics: DTIC Archive, NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA, *WAVELET TRANSFORMS, *SIGNAL...
The authors developed a noncontact proximity sensor which can measure the distance and orientation of a surface in a range of four to five centimeters. The sensor is based on the scheme of active illumination and triangulation. It uses multiple infrared LEDs(light emitting diodes) as the light sources and a PIN-diode area sensor chip for detecting the spot positions. Six LEDs with optics for collimating the beam are mounted at the sensor head. The directions of the beams are aligned to form a...
Topics: DTIC Archive, Kanade,T, CARNEGIE-MELLON UNIV PITTSBURGH PA ROBOTICS INST, *Proximity devices,...
This report summarizes the results of an operational evaluation conducted between April 1976 and August 1977 by general aviation pilots on an Airborne Proximity Warning Indicator (APWI). The APWI evaluated was a Rock Avionic Systems unit which was produced by the Scientific Prototype Manufacturing Compnay. The FAA conducted an operational evaluation of the Rock Avionic APWI using four systems installed in general aviation aircraft. The evaluation produced results consisting of questionnaires...
Topics: DTIC Archive, Lucier,Ernest, FEDERAL AVIATION ADMINISTRATION WASHINGTON DC SYSTEMS RESEARCH AND...
A study was conducted to assess the feasibility and define the system accuracy and equipment required to add a bearing measurement subsystem to the SECANT Collision Avoidance System (CAS). The results indicate the feasibility of achieving the accuracy required to serve useful functions. Equipment configurations required for Proximity Warning Indicator and CAS applications were evolved and are presented in detail in this study. The approach utilizes a ring array antenna consisting of vertical...
Topics: DTIC Archive, Jellinek, Ernest, RCA ELECTROMAGNETIC AND AVIATION SYSTEMS DIV VAN NUYS CA,...
The topics of theoretical and experimental interest in this research have been: The Proximity Induced Josephson Effect (PIJE), an effect occurring at a Normal Metal/Superconductor (N/S) interface which displays many of the features of the Josephson effect, the device potential of which has not been at all explored. The design and construction of a cryogenic scanning tunneling microscope capable of operating in ultra high vacuum. The Proximity Induced Josephson Effect (PIJE) has been observed at...
Topics: DTIC Archive, Wolf, E L, POLYTECHNIC UNIV BROOKLYN NY DEPT OF PHYSICS, *THIN FILMS, *CRYOGENICS,...
The purpose of this research was to describe the unperturbed relative motion of Earth satellites in elliptical orbits using a simple dynamics model whose parameters allow significant geometrical insight and operational efficacy. The goal was to retain the advantages of the Relative Orbit Elements (ROE) realization of the Hill-Clohessy-Wiltshire (HCW) equations, a linearized dynamics model for circular reference orbits. Specifically, this thesis analyzed the geometry of satellite rendezvous and...
Topics: DTIC Archive, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND...
During World War II many surface combatants were severely crippled by close-proximity underwater explosions from ordnance that had actually missed their target. Since this time, in order to test the survivability of mission essential equipment in a severe shock environment, all new classes of combatants have been required to have shock trial tests conducted on the lead ship of the class. While these tests are extremely important in determining the vulnerabilities of a surface ship, they require...
Topics: DTIC Archive, Schneider, Nathan A, NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF MECHANICAL...
Topics: DTIC Archive, Sanchez, Camilo A, ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER...
Existing missile/target encounter modeling and simulation systems focus on improving probability of kill models. Little research has been done to visualize these encounters. These systems can be made more useful to the engineers by incorporating current computer graphics technology for visualizing and animating the encounter. Our research has been to develop a graphical simulation package for visualizing both endgame and full fly-out encounters. Endgame visualization includes showing the...
Topics: DTIC Archive, Bush, Jeffrey T., AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH, *GUIDED MISSILES,...
Static force and moment tests were conducted in the VKF Tunnel A using the captive trajectory system to simulate solid rocket booster (SRB) separation maneuvers from the space shuttle orbiter/external tank at Mach 4.5. Phase I test objectives were to determine proximity interference aerodynamics of the SRBs with the booster motors active. The Phase II effort developed an expanded aerodynamic data base, up to longitudinal separation distances of 1700 in., with a single SRB and no motor modeling....
Topics: DTIC Archive, Crosby,W A, ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFS TN, *SPACECRAFT, *SPACE...
This report reflects the results of an effort at the National Aviation Facilities Experimental Center (NAFEC) to test and evaluate the interface between the intermittent positive control (IPC) system and the enroute air traffic controller. In testing this interface, the IPC algorithm was resident in the Digital Simulation Facility, which simulated the operation of a Discrete Addresss Beacon System (DABS). The test series was operationally oriented and did not consider such factors as program...
Topics: DTIC Archive, Goodwin,John W, NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J,...
The Navy Clothing and Textile Research Facility studied the effectiveness of refurbishing the aluminum coating on worn aluminized proximity firefighters' clothing. It was thought that, if a spray-on aluminum enamel could restore the surface aluminum coating to an acceptable level of infrared radiant heat reflectance, then the clothing could be worn for an extended period of time, reducing replacement costs. Vacuum-deposited aluminum fabric specimens were cut from worn firefighters' clothing and...
Topics: DTIC Archive, Winer,H, NAVY CLOTHING AND TEXTILE RESEARCH FACILITY NATICK MA, *ALUMINUM COATINGS,...
The past few years have brought a tremendous rise in the envisioned potential of robotic systems, and a correspondingly significant increase in the number of proposed applications. In the nonindustrial arena, numerous programs have evolved, each intending to harness some of this promise in hopes of solving some particular application need. Most of these efforts are government-sponsored, aimed at the development of systems for fighting fires, handling ammunition, transporting materials,...
Topics: DTIC Archive, Everett, H R, NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA, *COLLISION AVOIDANCE, *OPTICAL...
Electrical devices (computers, radar systems, communication radios, etc.) are interconnected by wires on most present systems. Electromagnetic fields produced by the excitation of these wires will cause unintentional coupling of signals onto nearby wires. This undesired electromagnetic coupling is termed crosswalk. It is important to be able to determine whether these crosstalk signals will cause the devices at the ends of the wires to malfunction. Wires are often grouped together in cable...
Topics: DTIC Archive, Koopman,D A, SOUTHEASTERN CENTER FOR ELECTRICAL ENGINEERING EDUCATION INC ST CLOUD...
Ground Proximity Warning Systems have experienced considerable success as a safety backup device for fixed wing aircraft applications. Transferring this concept to a Rotorcraft, however, requires compensation for a type of aircraft that is intentionally flown at low altitudes, relatively slow airspeeds, and in most cases, provides no definitive cues as it transitions to a landing or hovering state. NAVAIRSYSCOM has chosen a system for selected helicopters in the Navy and Marine Corps inventory...
Topics: DTIC Archive, Schueler, Doug, NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD,...
Five projects are discussed involving nonlinear acoustics. (1) Scattering of Sound by Sound, a theoretical study of two noncollinear Gaussian beams which interact to produce sum and difference frequency sound. (2) Parametric Receiving Arrays, a theoretical and numerical study of parametric reception in a reverberant environment. (3) Noncollinear Interaction of a Tone with Noise, an experimental investigation of the nonlinear interaction which occurs when the two waves propagate in different...
Topics: DTIC Archive, Hamilton, Mark F, TEXAS UNIV AT AUSTIN DEPT OF MECHANICAL ENGINEERING, *ACOUSTIC...
In 1999, Georgia Tech conducted two field experiments to determine the performance of its mission specification system. The experiments were developed for the DARPA Tactical Mobile Robotics (TMR) Program and were conducted at Fort Sam Houston, Texas. The goal of the TMR Program is to develop robotic tools that can perform useful tasks on future military missions involving complex obstacle negotiation, autonomous indoor navigation, and robust machine perception for urban environments. As a part...
Topics: DTIC Archive, Collins, Thomas R, GEORGIA INST OF TECH ATLANTA COLL OF MANAGEMENT, *ROBOTICS,...
This paper presents a method for estimating the forces and moments on the six axes of an Unmanned Underwater Vehicle (UUV) operating in close proximity to a host vesseL Forces and moments encountered by the vehicle in the host vessel launchway, near the vessel and clear of the launchway, and far away from the host vessel, are modeled from experimental and theoretical sources. A quasi - steady approach to the vehicle launch dynamics allows coupling of experimental data, potential flow theory,...
Topics: DTIC Archive, Riggle, Jess E., MASSACHUSETTS INST OF TECH CAMBRIDGE, *UNDERWATER VEHICLES,...
In order to evaluate the adequacy of aircraft proximity warning and collision avoidance information pilot display, 14 alternative cockpit displays were compared to the original Intermittent Positive Control (IPC) BADCOM display in a subjective evaluation by 17 persons. A single display best incorporating the preferred features was then compared to the BADCOM display in a series of midair collisions simulated in the GAT-2 flight simulator. Twenty-four pilots participated in four test sessions,...
Topics: DTIC Archive, Eldredge,Donald, NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J,...
This report documents the Navy shipboard elevator controller and sensor subsystems research, development, test and evaluation plan. The Navy shipboard elevator development program was inaugurated following numerous problems experienced by the fleet on cargo/weapons elevators installed in underway replenishment ships. Many elevator controller styles were in service with systems and components produced by numerous manufacturers. Replacement components were frequently procured from sole source...
Topics: DTIC Archive, Thomas,Geoffrey O, NAVAL RESEARCH LAB WASHINGTON DC, *LOGISTICS SUPPORT, *CONTROL...
