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HIGHLIGHTS ARCHIVE
Aircraft Stall Recovery Guidance Experiment at the Vertical Motion Simulator
April 26, 2017

Screenshot of the Primary Flight Display with Stall Recovery Guidance Recovery symbology
Simulator Primary Flight Display with Stall Recovery Guidance

Starting in April 2017, the Intelligent Systems Division at NASA's Ames Research Center began investigating the effectiveness of guidance display symbology coupled with two distinct algorithms in the Stall Recovery Guidance (SRG) experiment at the Vertical Motion Simulator (VMS). Aircraft loss-of-control (LOC) in flight is the number one cause of aviation fatalities. Loss of control in flight is defined as significant, unintended departure of the aircraft from controlled flight, the operational flight envelope, or usual flight attitudes. To reduce LOC fatalities, NASA's Technologies for Airplane State Awareness (TASA) activity under the Airspace Technology Demonstration (ATD) project is developing technology to guide the pilot in recovering from a stall. A stall happens when an aircraft loses lift and cannot maintain level flight, and this typically happens when a pilot leaves the operational flight envelope. The stall recovery guidance is displayed to the pilot as symbology on the primary flight display (PFD). The vertical distance between the throttle guidance symbol and the current throttle setting indicates the throttle setting error. By increasing the throttle, the distance between the throttle guidance and current throttle setting symbols will decrease until they are on top of each other, resulting in the proper power setting to recover from the stall. In addition, roll and pitch magenta needles, also known as the flight director, provide the pilot with aircraft attitude guidance. The pilots will attempt to drive the black square, located in the center of the display, to the intersection of the flight director through the use of the aircraft flight controls. The Stall Recovery Guidance (SRG) experiment will be conducted over six weeks with 30 commercial aircraft-rated pilots who will perform four stall recovery tasks using the experimental guidance. (POC: Scott Reardon, Stefan Schuet)



NAS Flow Advisory Manager Undergoes Second Evaluation at North Texas Research Station
April 26, 2017

Staff evaluate the NFAM at NTX.
NFAM Evaluation

National Airspace System (NAS) Flow Advisory Manager (NFAM) is a software tool being developed by Mosaic ATM under a Small Business Innovative Research (SBIR) contract. Twelve traffic management coordinators from Fort Worth Air Route Traffic Control Center (ARTCC) evaluated the NFAM at the NASA North Texas Research Station (NTX), Fort Worth, Texas in six evaluation sessions during April 19-21, 2017. The NFAM concept is based on the Generalized Brownian Motion (GBM) model algorithms that provide time-varying demand, capacity, and uncertainty in demand and capacity assessments. The tool provides a predictive capability to allow air traffic managers to visualize the impact of existing and proposed traffic management initiatives, up to several hours in advance. A previous evaluation of NFAM in November 2016 showed promising results, and resulted in several changes to the algorithm prior to this final human-in-the-loop evaluation. (POC: Paul Borchers)



CLT ATCT/TRACON Back room ATD-2 Training and System Familiarization Session
April 26, 2017

On April 19-20, 2017, the Airspace Technology Demonstration 2 (ATD-2) team completed a training and system familiarization session of the Integrated Arrival/Departure/Surface (IADS) prototype system in the back room area of the Air Traffic Control Tower (ATCT)/TRACON at Charlotte Douglas International Airport (CLT). This training session provided traffic managers and controllers from CLT Air Traffic Control Tower (CLT ATCT) and operational managers with hands-on time with the IADS system running with live data. A key expected benefit of the IADS system is the sharing of information amongst traffic managers at the CLT ATCT, CLT Ramp Tower, and Washington Center. Data exchange and integration features were demonstrated and detailed information regarding their use and implementation was provided. The IADS system was also demonstrated to the National Air Traffic Controllers Association (NATCA) Terminal Flight Data Manager (TFDM)/Advanced Electronic Flight Strips (AEFS) national representative, which allowed for initial dialogue and engagement important to future phases of the ATD-2 project. (POC: Shivanjli Sharma)



Workshop for ATD-2 NAS-Wide Benefits Assessment
April 26, 2017

On April 19, 2017, a workshop was held at NASA Ames Research Center led by ATAC Corporation who is investigating the National Airspace System (NAS)-wide benefits and costs of the Airspace Technology Demonstration 2 (ATD-2)'s Integrated Arrival, Departure, and Surface (IADS) system. ATAC is teamed with MIT Lincoln Labs and MCR under a NASA Research Announcement (NRA). The workshop provided details on IADS scheduling and metering functions in preparation for ATAC's upcoming modeling and simulation studies. The ATAC team will run fast-time simulations using NASA's Surface Operations Simulator and Scheduler (SOSS) for key sites that include Charlotte Douglas International Airport (CLT), Dallas-Fort Worth International Airport (DFW), and Newark Liberty International Airport (EWR). The simulations will use traffic scenarios based on FAA-selected canonical days in 2016, designed to facilitate the extrapolation of benefits across the NAS. Benefits and costs will be assessed for technology increments representing each ATD-2 demonstration phase. Where applicable, studies will capture IADS benefits related to the entire metroplex, including benefits at satellite airports and within shared departure airspace. During the workshop, a live IADS demonstration was remotely controlled from the North Texas Research Station (NTX) and broadcast over WebEx. The NRA contract concludes in 2018. (POC: Rich Coppenbarger)



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