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  • AIRCRAFT DESIGN, TESTING AND PERFORMANCE  (2)
  • Avionics and Aircraft Instrumentation  (1)
  • 1
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    Proceedings of the Non-Linear Aero Prediction Requirements Workshop (1994)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The purpose of the Non-Linear Aero Prediction Requirements Workshop, held at NASA Langley Research Center on 8-9 Dec. 1993, was to identify and articulate requirements for non-linear aero prediction capabilities during conceptual/preliminary design. The attendees included engineers from industry, government, and academia in a variety of aerospace disciplines, such as advanced design, aerodynamic performance analysis, aero methods development, flight controls, and experimental and theoretical aerodynamics. Presentations by industry and government organizations were followed by panel discussions. This report contains copies of the presentations and the results of the panel discussions.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-CP-10138 , NAS 1.55:10138 , Dec 08, 1993 - Dec 09, 1993; Hampton, VA; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    An assessment of mission and configuration variations on multi-role fighter/attack aircraft concepts (1993)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: This paper presents the results of a series of configuration studies conducted in connection with the NASA agility design study project. The purpose of these in-house studies was to develop a parametric data base of configuration concepts and resulting mission performances for a variety of notional fighter/attack missions. This data base will then be used to assess the impact of the imposition of agility requirements on these configurations. Three vehicle concepts were evaluated, and resulting vehicle sizes, weights, and mission performances were compared. Each configuration was then optimized for varying mission requirements and technology levels. It was found that small variations in mission requirements can have significant impact on the design choices. It was also found that optimization of engine cycle variables results in significant improvements in take-off gross weight and vehicle performance regardless of the concept being explored. Finally, results indicate that signature considerations such as internal vs. external weapons carriage can cause dramatic changes in vehicle size, weight, and mission performance.
    Keywords: AIRCRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AIAA PAPER 93-1177 , ; 8 p.|AIAA, AHS, and ASEE, Aerospace Design Conference; Feb 16, 1993 - Feb 19, 1993; Irvine, CA; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Self-Contained Avionics Sensing and Flight Control System for Small Unmanned Aerial Vehicle (2011)
    In:  CASI
    Details
    Publication Date: 2019-08-27
    Description: A self-contained avionics sensing and flight control system is provided for an unmanned aerial vehicle (UAV). The system includes sensors for sensing flight control parameters and surveillance parameters, and a Global Positioning System (GPS) receiver. Flight control parameters and location signals are processed to generate flight control signals. A Field Programmable Gate Array (FPGA) is configured to provide a look-up table storing sets of values with each set being associated with a servo mechanism mounted on the UAV and with each value in each set indicating a unique duty cycle for the servo mechanism associated therewith. Each value in each set is further indexed to a bit position indicative of a unique percentage of a maximum duty cycle for the servo mechanism associated therewith. The FPGA is further configured to provide a plurality of pulse width modulation (PWM) generators coupled to the look-up table. Each PWM generator is associated with and adapted to be coupled to one of the servo mechanisms.
    Keywords: Avionics and Aircraft Instrumentation
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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