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At least 739 records · Page 41

Computer-automated opponent for manned air-to-air combat simulations

Two versions of a real-time digital-computer program that operates a fighter airplane interactively against a human pilot in simulated air combat were evaluated. They function by replacing one of two pilots in the Langley differential maneuvering simulator. Both versions make maneuvering decisions from identical information and logic; they differ essentially in the aerodynamic models that they control. One is very complete, but the other is much simpler, primarily characterizing the airplane's performance (lift, drag, and thrust). Both models competed extremely well against highly trained U.S. fighter pilots.

Hankins, W. W., III↗

The world of tomorrow: Aerospace activities for 8- to 10-year olds. A guide for leaders of children's groups and teachers of the lower grades

During January 1977, NASA helped the Cub Scout Division of the Boy Scouts of America in the conduct of its The World of Tomorrow monthly theme. In this period, 249 Cub Scout packs participated in a nationwide aerospace activities project, a pilot project in which den leaders and Cubmasters conducted local programs for their Cub Scouts and Webelos Scouts. The products of these local programs are presented with the written accounts submitted by adult leaders and written compositions, pictures, and photographs of models submitted by the youngsters.

Source record↗

Design, simulation and evaluation of advanced display concepts for the F-16 control configured vehicle

Advanced display concepts to augment the tracking ability of the F-16 Control Configured Vehicle (CCV) were designed, simulated, and evaluated. A fixed-base simulator was modified to represent the F-16 CCV. An isometric sidearm control stick and two-axis CCV thumb button were installed in the cockpit. The forward cockpit CRT was programmed to present an external scene (numbered runway, horizon) and the designed Heads Up Display. The cockpit interior was modified to represent a fighter and the F-16 CCV dynamics and direct lift and side force modes were programmed. Compensatory displays were designed from man-machine considerations. Pilots evaluated the Heads up Display and compensatory displays during simulated descents in the presence of several levels of filtered, zero-mean winds gusts. During a descent from 2500 feet to the runway, the pilots tracked a point on the runway utilizing the basic F-16, F-16 CCV, and F-16 CCV with advanced displays. Substantial tracking improvements resulted utilizing the CCV modes, and the displays were found to even further enhance the tracking ability of the F-16 CCV.

Klein, R. W.↗

Captain Development Training at US Air

The flight training program practiced at US Air is reviewed. The background and development of the program are discussed. Specific program activities and curricula are considered. The issue of educating pilots to be aware of and admit significant flight stress and stress in their personal lives is addressed.

Fickes, S.↗

Users guide: The LaRC human-operator-simulator-based pilot model

A Human Operator Simulator (HOS) based pilot model has been developed for use at NASA LaRC for analysis of flight management problems. The model is currently configured to simulate piloted flight of an advanced transport airplane. The generic HOS operator and machine model was originally developed under U.S. Navy sponsorship by Analytics, Inc. and through a contract with LaRC was configured to represent a pilot flying a transport airplane. A version of the HOS program runs in batch mode on LaRC's (60-bit-word) central computer system. This document provides a guide for using the program and describes in some detail the assortment of files used during its operation.

Bogart, E. H.↗

PiFEx propagation experiments

An overview is presented of the Pilot Field Experiments (PiFEx) performed under the Mobile Satellite Experiment Program (MSAT-X) on the performance of MSAT-X equipment and subsystems. A brief history of PiFEx and plans for future experiments are given. Some results from the satellite experiment held last August are discussed.

Emerson, Richard F.↗

Proceedings of the 6th Annual Summer Conference: NASA/USRA University Advanced Design Program

The NASA/USRA University Advanced Design Program is a unique program that brings together NASA engineers, students, and faculty from United States engineering schools by integrating current and future NASA space/aeronautics engineering design projects into the university curriculum. The Program was conceived in the fall of 1984 as a pilot project to foster engineering design education in the universities and to supplement NASA's in-house efforts in advanced planning for space and aeronautics design. Nine universities and five NASA centers participated in the first year of the pilot project. The study topics cover a broad range of potential space and aeronautics projects that could be undertaken during a 20 to 30 year period beginning with the deployment of the Space Station Freedom scheduled for the mid-1990s. Both manned and unmanned endeavors are embraced, and the systems approach to the design problem is emphasized.

Source record↗

Extended attention span training system

Attention Deficit Disorder (ADD) is a behavioral disorder characterized by the inability to sustain attention long enough to perform activities such as schoolwork or organized play. Treatments for this disorder include medication and brainwave biofeedback training. Brainwave biofeedback training systems feed back information to the trainee showing him how well he is producing the brainwave pattern that indicates attention. The Extended Attention Span Training (EAST) system takes the concept a step further by making a video game more difficult as the player's brainwaves indicate that attention is waning. The trainee can succeed at the game only by maintaining an adequate level of attention. The EAST system is a modification of a biocybernetic system that is currently being used to assess the extent to which automated flight management systems maintain pilot engagement. This biocybernetic system is a product of a program aimed at developing methods to evaluate automated flight deck designs for compatibility with human capabilities. The EAST technology can make a contribution in the fields of medical neuropsychology and neurology, where the emphasis is on cautious, conservative treatment of youngsters with attention disorders.

Pope, Alan T.↗

Predictive nosepointing and flightpath displays for air-to-air combat

As part of the High-Angle-of-Attack Technology Program (HATP), two integrated pictorial displays have been developed for piloted simulation evaluations and, ultimately, for flight testing on board the F/A-18 High Alpha Research Vehicle (HARV). The first concept is a nosepointing display which illustrates the range of control the pilot has over the aircraft nose. The second concept is a predictive flightpath display that allows the pilot to see how his current control inputs will affect his aircraft's future position and orientation. The development of both display concepts will be discussed, as well as the results from a piloted simulation experiment in which pilots viewed the flightpath display in a wide-field-of-view Helmet-Mounted Display (HMD) while engaged in an air-combat situation.

Viken, Sally A.↗

Use of simultaneous radionuclide and other trace constituent measurements to determine fluxes and atmospheric residence times

Finding a way to use atmospheric concentrations to determine source strengths and atmospheric residence times pose considerable difficulties. An approach is to use simultaneously measured radionuclide concentrations as a means of deriving fluxes and residence times for certain atmospheric trace constituents of interest. The study and use of such methods in a pilot field experiment were among the original goals of this program. Four such approaches were studied or developed; suitable sampling and analysis systems were built and tested or are in the final stages of construction; and a small scale field experiment. The evolution is reviewed of the program and the field experiment is described along with the possibilities for its eventual extension to include other species of interest. The four radionuclide based approaches studied are: Mean vertical profiles; Trajectory correlation; Boundary layer discontinuity; and Lead deposition.

Kritz, Mark↗

Ground-to-Flight Handling Qualities Comparisons for a High Performance Airplane

A flight test program was conducted in conjunction with a ground-based piloted simulation study to enable a comparison of handling qualities ratings for a variety of maneuvers between flight and simulation of a modern high performance airplane. Specific objectives included an evaluation of pilot-induced oscillation (PIO) tendencies and a determination of maneuver types which result in either good or poor ground-to-flight pilot handling qualities ratings. A General Dynamics F-16XL aircraft was used for the flight evaluations, and the NASA Langley Differential Maneuvering Simulator was employed for the ground based evaluations. Two NASA research pilots evaluated both the airplane and simulator characteristics using tasks developed in the simulator. Simulator and flight tests were all conducted within approximately a one month time frame. Maneuvers included numerous fine tracking evaluations at various angles of attack, load factors and speed ranges, gross acquisitions involving longitudinal and lateral maneuvering, roll angle captures, and an ILS task with a sidestep to landing. Overall results showed generally good correlation between ground and flight for PIO tendencies and general handling qualities comments. Differences in pilot technique used in simulator evaluations and effects of airplane accelerations and motions are illustrated.

Brandon, Jay M.↗

What's Cookin' With Helicopter Microwave Landing Systems?

This article describes a joint effort of the FAA, NASA and the Helicopter Industry to establish a data base for (Microwave Landing Systems) MLS approaches, and to aid the FAA in developing the MLS Terminal Instrument Procedures (TERPS) criteria for rotary-wing IFR operations. The latter is of particular importance for it appears to signal sincere official interest in filling in the blanks in Chapter 11 of TERPS -- that portion set aside for helicopter IFR operations and recognition of the unique capabilities of the helicopter in the instrument environment. One of the program objectives is to find out what a sample of pilots can do with the MLS in a minimum machine.

Taylor, Richard L.↗

NASA Earth Science Research and Applications Using UAVs

The NASA Earth Science Enterprise sponsored the UAV Science Demonstration Project, which funded two projects: the Altus Cumulus Electrification Study (ACES) and the UAV Coffee Harvest Optimization experiment. These projects were intended to begin a process of integrating UAVs into the mainstream of NASA s airborne Earth Science Research and Applications programs. The Earth Science Enterprise is moving forward given the positive science results of these demonstration projects to incorporate more platforms with additional scientific utility into the program and to look toward a horizon where the current piloted aircraft may not be able to carry out the science objectives of a mission. Longer duration, extended range, slower aircraft speed, etc. all have scientific advantages in many of the disciplines within Earth Science. The challenge we now face are identifying those capabilities that exist and exploiting them while identifying the gaps. This challenge has two facets: the engineering aspects of redesigning or modifying sensors and a paradigm shift by the scientists.

Guillory, Anthony R.↗

The Use of Spire Radio Occultation Measurements in the GEOS Atmospheric Data Assimilation System

As part of the pilot segment of the NASA Commercial SmallSat Data Acquisition (CSDA) Program, the Global Modeling and Assimilation Office (GMAO) evaluated products acquired from Spire Global, Inc. in the context of the Goddard Earth Observing System (GEOS) Atmospheric Data Assimilation System (ADAS). Specifically, the GMAO assimilated the bending angle profiles derived by Spire from Global Navigation Satellite System (GNSS) radio occultation (RO) measurements of the atmosphere made by their Stratos instruments onboard their constellation of Lemur small satellites. The bending angle observations were used to further constrain the thermodynamic fields in the context of the global observing system typically assimilated within GEOS.

Will Mccarty↗

The Department of Energy Savannah River Operations Office Savannah River National Laboratory Unmanned Aircraft System Aviation Implementation Plan

The Department of Energy Savannah River Operations Office Savannah River National Laboratory Unmanned Aircraft System Aviation Implementation Plan was written to provide guidance for the safe, efficient, and lawful operation of the SRNL small Unmanned Aircraft System (sUAS) Program. It shall be the intent of every sUAS remote pilot in command to make reasonable effort not to invade a person's reasonable expectation of privacy when operating the sUAS. SRS sUAS operations will be conducted in accordance all applicable Federal Aviation Administration (FAA), Department of Energy (DOE), and DOE-Savannah River Operations Office (DOE-SR) regulations, policies and procedures. All sUAS operations will be conducted in accordance with the applicable FAA issued DOE Certificate of Authorization (COA) and be approved by the applicable DOE-SR Flight Readiness Review Board (FRRB). The scope of this document is limited to remote pilots in command of sUAS's in support of the DOE, DOE-SR, or SRS missions, research & development (R&D) and national security strategic initiatives supported by SRNL, and other approved missions as required in the US National Airspace (NAS) as defined by the FAA.

99 GENERAL AND MISCELLANEOUS↗

Development of New Type-B Containers and the 'Alternative Approach' Disposal of High-Activity Sealed Sources - 17385

The DOE/NNSA Office of Radiological Security (ORS) is undertaking two projects to enable the recovery and disposal of high-activity sealed sources. First, ORS has completed the development, certification, and fabrication of a new Type B package to support the recovery and transportation of high-activity sources commonly used in irradiators and cancer treatment devices. A second design is currently undergoing certification. The new containers will enable DOE/NNSA shipment of nearly 100 percent of all commercially used devices containing Cs-137 and Co-60, which are particularly significant from a National security, public health, and safety standpoint. Second, ORS and the Conference of Radiation Control Program Directors (CRCPD) Source Collection and Threat Reduction (SCATR) are piloting the commercial disposal of a high-activity device under the NRC's revised guidance on concentration averaging and encapsulation. The Cs-137 blood irradiator is being proposed for disposal at the U.S. Ecology facility in Richland, WA. The project is intended to serve as a model for commercial disposal of similar Class C sources that for decades have been without a commercial disposal pathway. (authors)

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE W↗