Download or read book Safer skies with TCAS traffic alert and collision avoidance system special report written by and published by DIANE Publishing. This book was released on with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Traffic Alert and Collision Avoidance System TCAS Evaluation written by Barry R. Billmann and published by . This book was released on 1983 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Safer Skies with TCAS written by and published by . This book was released on 1989 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Traffic Alert and Collision Avoidance System TCAS Evaluation Volume II Equipped Threat Phase and an Assessment in an Error Degraded Environment written by Barry R. Billmann and published by . This book was released on 1983 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of certain aspects of Traffic Alert and Collision Avoidance System (TCAS) logic testing. It represents the second volume in a series of three reports. The report presents the results of analysis of both simulation and flight testing of the TCAS logic. The analysis was conducted between November 1981 and January 1982, at the Federal Aviation Administration Technical Center. The new TCAS logic significantly improved the resulting separation during encounters with TCAS equipped threats. Simplified command coordination procedures have increased command coordination reliability. Some minor logic modifications have been identified to further enhance TCAS logic performance for TCAS equipped threats. The performance of the logic in the presence of reduced surveillance link reliability was also analyzed. The link reliability level required to affect adequate resolution and separation was identified. This analysis was conducted in a measurement error-degraded environment. Review of flight test results indicate surveillance link reliability exceeds that required to affect adequate separation performance. (Author).
Download or read book In service Evaluation of the Traffic Alert and Collision Avoidance System TCAS Industry Prototype written by Daniel H. Tillotson and published by . This book was released on 1988 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: An operational evaluation of the Traffic Alert and Collision Avoidance System (TCAS II) Industry Prototype was conducted to assess the utility of TCAS II to flight crews, to assess the impacts of TCAS on flight crew workload, to assess the impacts of TCAS on the air traffic control (ATC) system, and to obtain flight crew comments on TCAS design parameters and cockpit displays. The evaluation was conducted on one Boeing 727 aircraft operating in airline revenue service with Piedmont Airlines. Quantitative data on TCAS performance were collected to characterize the location and frequency of TCAS advisories. Qualitative data were collected from flight crews and cockpit observers to assess the impacts of TCAS on ATC and the flight crews. Minor operational anomalies the utility of TCAS and to assess were identified and changes to operational procedures or TCAS logic were recommended. Keywords: Human factors engineering, Avionics, Flight training.
Download or read book Traffic Alert and Collision Avoidance System Logic Evaluation written by Barry R. Billmann and published by . This book was released on 1982 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this report is to characterize the performance of the Traffic Alert and Collision Avoidance System (TCAS) logic which was developed by the Mitre Corporation. The evaluation was based on baseline logic documentation and logic changes made between January to October 1981. The report is the first part of a three-volume series and reflects the evaluation of logic performance using the Fast-Time Encounter Generator as the logic test bed for unequipped threats. The study was conducted in two phases. The initial phase addressed the identification and correction of logic flaws. After the improvements in the logic were coordinated with are provided by Mitre, the second phase assessed the TCAS logic performance for a wide variety of two-aircraft encounters. The report identifies the logic deficiencies and the results of the analysis. In general, TCAS logic performance was excellent. (Author).
Download or read book The Traffic Alert and Collision Avoidance System written by United States. Congress. House. Committee on Science and Technology and published by . This book was released on 1986 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Operational Findings from a Traffic Alert and Collision Avoidance System TCAS Evaluation written by Dan Tillotson and published by . This book was released on 1988 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TCAS Traffic Alert and Collision Avoidance System II Logic Performance During Phase One Operational Evaluation written by L. B. Zarrelli and published by . This book was released on 1984 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document describes the performance of the collision avoidance logic during the Phase I Operational Evaluation of the Traffic Alert and Collision Avoidance System called Minimum TCAS II. Between November 1981 and March 1982, TCAS units were installed on two Piedmont Airlines B727 aircraft flown on regularly scheduled passenger flights. For this phase of testing, data was recorded while trained observers viewed the TCAS advisories. However, these displays were not shown to the flight crew. The analysis of logic performance first required identification and removal of alerts caused by hardware or software coding problems that were subsequently fixed, or else caused by problems in the collision avoidance logic which were subsequently removed. Examples are shown for which logic improvements correct earlier problems. Operational questions, observer comments, and an assessment of the true alert rate are then examined using the recorded data. Additional keywords: Altimetry errors; Visual acquisition; and Near Midair Collision (NMAC). (Author).
Download or read book To Review the Status of the Airborne Traffic Alert and Collision Avoidance System TCAS written by United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Investigations and Oversight and published by . This book was released on 1992 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rotorcraft TCAS Traffic Alert and Collision Avoidance System Evaluation Group 2 Results written by Albert J. Rehmann and published by . This book was released on 1986 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains results of Group 2 testing of a Traffic Alert and Collision Avoidance System (TCAS) installation in a Sikorsky S-76. Of the three groups in the S-76 TCAS evaluation effort, Group 2 was the most substantive because the important work of specifying the characteristics of the antenna installation and the particular effects of multipath were both accomplished. Transmitter and receiver specifications were also developed. Two antenna sites, one atop the nose and one on the underside of the tail boom, were evaluated. Each site is a suitable location for a single antenna TCAS. The bottom antenna has better bearing performance and slightly better coverage, while the top antenna is far less corrupted by multipath. Relative merits of each antenna will be further evaluated. Through examination of flight data, a three-step multipath elimination algorithm was developed. It will be implemented and evaluated as part of Group 3 flight data reduction. Minimum transmit power and receiver sensitivities were specified, based on a 90% probability of reply and a target range of 4 miles forward and 2.8 miles rearward. Effects of general aviation transponder characteristics and TCAS antenna patterns were also considered. Keywords: Aircraft antennas, Rotary wing aircraft.
Download or read book Traffic Alert and Collision Avoidance System written by G. P. Boucek and published by . This book was released on 1985 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes one of a series of studies being conducted to develop the Traffic Alert and Collision Avoidance System (TCAS). The purpose of this study was to conduct a pilot evaluation of the relationship between TCAS displays, an operational crew station, aircraft performance, TCAS logic and operational TCAS procedures. The specific objectives of the evaluation were to be: Develop and evaluate the operational procedures associated with TCAS alerts under both normal and abnormal flight operations; Assess changes in flight deck operations associated with TCAS; Assess operational procedures as related to ATC control; Assess the impact of TCAS display requirements on flight deck systems and geometry. During the evaluation experienced transport pilots were presented TCAS alerts while flying a high fidelity B737-200 training simulator. Their response to the alerts was observed and recorded as were their opinions concerning the system. As a result of reviewing pilot responses to 552 TCAS encounters with a total of 970 intruder aircraft, it is recommended that TCAS be revised to achieve more consistantly correct pilot response. Keywords: Collision Avoidance, Aircraft Separation Assurance; Alert; Warning Systems; Signal Response; Visual Alerts; Signal Detection.
Download or read book Pilot Evaluation of TCAS Traffic Alert and Collision Avoidance System in the Long Ranger Helicopter written by John W. Andrews and published by . This book was released on 1986 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: A specially modified version of the Traffic Alert and Collision Avoidance System (TCAS) was installed in a Bell Long Ranger helicopter in order to investigate the feasibility of TCAS operation in rotorcraft. This installation employed TCAS air-to-air surveillance to provide automated traffic advisories that were displayed in the cockpit on a color cathode ray tube display. As part of this study, 12 subject pilots evaluated the utility of the installation through brief test flights in the vicinity of a major airport. Among the topics investigated were the rate of alarms, the computer logic for issuing advisories, the bearing accuracy, and the display symbology. Several recommendations for adapting TCAS to the rotorcraft environment resulted from the testing.
Download or read book Rotorcraft TCAS Traffic Alert and Collision Avoidance System Evaluation Group 3 Results written by Albert J. Rehmann and published by . This book was released on 1987 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the operational flight test of a prototype Traffic Alert and Collision Avoidance System (TCAS) installed in a Sikorsky S-76 helicopter. The prototype TCAS, programmed to encompass the functions of a TCAS I, was flown to five east coast terminal cities, and operated along defined helicopter routes therein. The test results validated the minimum proposed TCAS I configuration. Further results recommend enhancements, to be included as options to improve the usefulness of TCAS I. Keywords: Helicopter safety; Helicopter accident prevention; Aviation safety.
Download or read book Lincoln Laboratory Evaluation of TCAS II Logic Version 6 O4a written by and published by . This book was released on 1996 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the Lincoln Laboratory evaluation of the Traffic Alert and Collision Avoidance System II (TCAS II) logic version 6.04a. TCAS II is an airborne collision avoidance System required since 30 December 1993 by the FAA on all air carrier aircraft with more than 30 passenger seats operating in U.S. airspace. Version 6.04a is a logic version mandated by the FAA by 30 December 1994 in order to correct a potential safety problem in earlier versions and to make the TCAS logic more compatible with the air traffic control system. Lincoln Laboratory evaluated the logic by examining approximately two million simulated pairwise TCAS-TCAS encounters, derived from actual aircraft tracks recorded in U.S. airspace. The main goals of the evaluation effort were: (1) to determine if version 6.04a successfully corrected the potential safety problem without introducing new problems; (2) to detect and explain any areas of poor performance; and (3) to understand the performance limits of the logic. Five analysis programs were written to aid in the evaluation, and these programs are described in the report. There were three phases of the evaluation corresponding to the above three goals. For each phase, the report gives an overview of the evaluation approach taken, a description of the results, and a summary. A description of follow-on activities plus overall conclusions and recommendations are given at the end of the report.
Download or read book Developing a Training Program for the Traffic Alert and Collision Avoidance System in Context written by Elizabeth Scott Fleming and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Traffic alert and Collision Avoidance System (TCAS) is an aircraft collision avoidance system designed to prevent mid-air collisions. During an advisory, danger is imminent, and TCAS is assumed to have better, more up-to-date information than the ground operated air traffic control (ATC) facility. Following a TCAS RA is generally the safe course of action during an advisory. However, pilot compliance with RAs is surprisingly low. Results from a TCAS monitoring study show pilots are not complying with many TCAS advisories. As revealed by pilot-submitted Aviation Safety Reporting System (ASRS) reports, this noncompliance could be attributed, in part, to pilot confusion to TCAS operation as well as misunderstandings of the appropriate response to a TCAS issued advisory. This thesis details the development and evaluation of a TCAS training program intended to improve pilots' understanding of TCAS use for collision avoidance in a range of traffic situations. The training program integrated Demonstration Based and Event Based Training techniques. Its efficacy was analyzed in an integrated ATC-cockpit simulator study in which eighteen commercial airline pilots were asked to complete the TCAS training program and afterwards experienced twelve experimental traffic events. The trained pilots' performance was compared to the performance of 16 baseline pilots who did not receive the modified training. Overall, the training program did have a significant impact on the pilots' behavior and response to TCAS advisories. The measure Time Pilots First Achieved Compliance decreased with the trained pilots, as did the measure Autopilot Disconnect Time After RA Initiation. Trained pilots exhibited less aggressive performance in response to a TCAS RA (including a decrease in the measures Altitude Deviation Over Duration Of RA, Average Vertical Rate Difference, Maximum Vertical Rate Difference, and Maximum Vertical Rate). The measure Percent Compliance did not significantly vary between trained and baseline pilots, although trained pilots had a more consistent response in the traffic event with conflicting ATC guidance. Finally, on the post-experiment questionnaires, pilots commented on their increase in understanding of TCAS as well as an increase in their trust in the advisory system. Results of this research inform TCAS training objectives provided by the FAA as well as the design of TCAS training. Additionally, conclusions extend more broadly to improved training techniques for other similar complex, time-critical situations.
Download or read book Collision Avoidance System Equipment and Compliance Deadlines written by United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Aviation and published by . This book was released on 1989 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
