| Airborne Radar Approach. |
APR 1980 |
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| Authors:
C. Mackin; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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 | A flight test series investigating the airborne radar approach (ARA) for helicopters is discussed. Passive and active target enhancement methods and their relative merits are examined. A description of systems and methods involved in the ARA are presented along with subjective insights and conclusions. It is concluded that the ARA is a practical approach aid in the absence of conventional navigation aids (NAVAID's) subject to certain limitations as discussed herein. ... |
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| Deformographics: High-Resolution Projection Display Development for Air Traffic Control Purposes |
OCT 1979 |
223 pages |
| Authors:
Gerard Spanier; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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 | This report describes the study of a unique display device ad technology called Deformographics to determine its practical value for the presentation of large quantities (e.g., 30,000 characters) of air traffic control data. The report covers the engineering, development, human factors, and test and evaluation phases and provides the technical performance data and applications concepts. Deformographics is a technology that produces a high-resolution, projection, storage,digitally controlled, random access, up to ... |
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| Comparative Evaluation of Firefighting Foam Agents |
AUG 1979 |
115 pages |
| Authors:
George B. Geyer; Lawrence M. Neri; Charles H. Urban; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| Information was obtained by conducting laboratory experiments and large-scale fire tests which were of value in estimating the fire extinguishing effectiveness of eight Aqueous-Film-Forming-Foams (AFFF), 11 fluoroprotein foams (FPF), and three protein foam (PF) agents. Large-scale fire tests were performed under fixed fire conditions employing air-aspirating and non-air-aspirating nozzles on 82.4-, 101-, and 143-foot diameter Jet A fuel fires. Experiments were performed with only one foam agent which was considered ... |
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| Comparison of Smoke Densities from the OSU Rate of Heat and Smoke Release Apparatus and the NBS Smoke Chamber. |
1979 |
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| Authors:
Eldon B. Nicholas; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| The purpose of this study was to evaluate the smoke characteristics of four different aircraft materials measured with the smoke monitor used in the Ohio State Rate of Heat and Smoke Release Apparatus, and to compare these results with those obtained in the National Bureau of Standards (NBS) Smoke Chamber. The National Aviation Facilities Experimental Center (NAFEC) presently has two methods for measuring the smoke emitted from burning aircraft materials. ... |
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| Test and Evaluation of the Moving Target Detector (MTD) Radar |
OCT 1977 |
126 pages |
| Authors:
Ronald S. Bassford; William Goodchild; Alfred De La Marche; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| The moving target detector (MTD) terminal radar processor system was evaluated to determine its capability to provide radar data suitable for utilization by the Automated Radar Terminal System. The major objective of testing was to compare the target detection in clutter performance of the MTD system with that of the best terminal radar processor system in the FAA inventory. The comparative tests were conducted using test signals and flight test ... |
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| Thermal Decomposition Products of Aircraft Interior Materials |
APR 1977 |
56 pages |
| Authors:
Joe C. Spurgeon; Louise C. Speitel; Ray E. Feher; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| Seventy-five typical aircraft interior materials were thermally decomposed using a combustion tube furnace. A 250-milligram sample was exposed to a temperature of 600 C for 5 minutes while maintaining an airflow rate of 2 liters per minute through the combustion tube. The combustion products were collected in liquid-filled fritted bubblers, and the contents were analyzed for hydrogen cyanide, hydrogen sulfide, hydrogen chloride, hydrogen bromide, and formaldehyde by differential pulse polarography; ... |
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| Test and Evaluation of an Enroute System Terrain-Avoidance Function with the NAS A3d2.1 System |
FEB 1977 |
16 pages |
| Authors:
Frederick W. Ranger; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| This report describes the operational evaluation of an enroute system terrain-avoidance function in conjunction with the National Airspace System Enroute A3d2.1 system. Tests were conducted at the National Aviation Facilities Experimental Center, Atlantic City, New Jersey, in a low-altitude environment with simulated digital target data. Tests were designed to evaluate the performance of the terrain-avoidance function with respect to detection capability and adequacy of warning provided. Results indicate that although ... |
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| Ignition and Propagation Rates for Flames in a Fuel Mist |
NOV 1976 |
56 pages |
| Authors:
C. E. Polymeropoulos; V. Sernas; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| The droplet size distribution in various experimental air-fuel sprays was measured using a holographic method. There was good agreement between upper-limit log-normal velocity distribution functions and the droplet size data. The Sauter mean diameter, maximum droplet diameter, and air-fuel ratio were also well represented by the data. Measurements of burning velocities in the sprays tested were compared with calculated predictions, and the results were satisfactory. Approximate burning velocities in modified ... |
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| Development of a Performance Criterion for Enroute Air Traffic Control Personnel Research through Air Traffic Control Simulation: Experiment I -- Parallel Form Development |
FEB 1976 |
41 pages |
| Authors:
Edward P. Buckley; Bernard Goldberg; Richard Rood; Helen Hamilton; Florence Champion; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| This first experiment was performed as part of the process of developing a standardized performance criterion for journeyman enroute traffic controllers. The final performance measurement system will be used in personnel research such as evaluating potential aptitude test capacity to predict suitability for entrance into training. The criterion measure will be based on the use of realistic dynamic simulation of the radar air traffic control situation. The completed measurement system ... |
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| Stagger/Destagger Modification for the Air Traffic Control Radar Beacon System |
JAN 1976 |
60 pages |
| Authors:
Paul Todd; Nicholas Talotta; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| The air traffic control radar beacon system (ATCRBS) was modified so as to eliminate false or second-time-around aircraft replies. A dual-channel stand-alone modification equipment unit was developed to stagger the beacon interrogations and destagger the reply video. The unit can be used with any beacon interrogator defruiter or processor. Two models, an analog and a digital, were developed. The resulting equipments were implemented and tested at the Bedford, Virginia, long-range ... |
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| A Preliminary Comparison of Laboratory Methods for Assigning a Relative Toxicity Ranking to Aircraft Interior Materials |
OCT 1975 |
48 pages |
| Authors:
Joe C. Spurgeon; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| Thirteen aircraft interior materials have been tested in order to compare the National Bureau of Standards (NBS) smoke chamber and the microcombustion tube furnace as methods for generating toxic combustion gases. The microcombustion tube furnance ranked nitrogen- and chloride-containing test materials of known composition according to the expected order based upon HCN and HCl concentrations. The nitrogen-containing test materials were not ranked in the expected order by measuring peak gas ... |
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| Measurement and Analyses of ASR-4 System Error. Part III. Summary |
DEC 1974 |
73 pages |
| Authors:
Allen C. Busch; Paul W. Bradbury; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| The positional accuracy of aircraft radar targets displayed in an air traffic control airport surveillance radar system (ASR-4) was measured as one of the inputs essential for determining aircraft separation standards. In the report, Part III: Summary, data have been pooled for all like system response measures from two extensive data sets previously reported out as Phase I Data and Phase II Data (reflecting a difference in measurement instrumentation) in ... |
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| Measurement and Analyses of ASR-4 System Error. Part I. Overview |
NOV 1974 |
18 pages |
| Authors:
Allen C. Busch; Paul Bradbury; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| The positional accuracy of aircraft radar targets as displayed in an air traffic control airport surveillance radar system (ASR-4) was sought as one of the inputs essential for determining aircraft separation standards. Using radar track input from the Atlantic City, New Jersey, ASR-4, the radar targets of two test aircraft executing flight patterns of varying relative spacing were photographed as displayed in both beacon and primary radar modes on scan- ... |
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| AFAPL Aircraft Fire Test Program with FAA from 1967 to 1970 |
JUN 1971 |
120 pages |
| Authors:
Daniel E. Sommers; John H. O'Neill; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| A number of aircraft propulsion and fuel system fire protection test programs were conducted. NARMCO prototype 'Fibercell' Overheat Detector, the Panametrics Inc. Prototype Hazardous Vapor Detector and a McGraw-Edison Co. Ultra-Violet Fire Detection System underwent limited evaluation in a Jet powerplant fire test enviornment. The Walter Kidde and Company, Inc. pyrotechnic generated gas discharge fire extinguishing agent container, and the E. W. Bliss Co. high-expansion foam/bromotri-fluoromethane extinguishing agent combination fire ... |
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| Effects of Selective System Parameters on Communications Intelligibility. |
MAR 1969 |
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| Authors:
Paul J. O'Brien; Allen C. Busch; NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY NJ
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| The communications frequency study was made to facilitate spectrum planning by FAA Frequency Management personnel. The study relates communications intelligibility to frequency channel spacing, bandwidth, modulation type, and signal-to-interference ratio. The overall approach was to conduct talker/listener intelligibility tests, voice communications equipment tests, and digital communications equipment tests. The test procedure subjected the Speech Communications Index Meter (SCIM) simulated speech signals, the Air Traffic Control (ATC) messages, and the Modified ... |
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